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Authentication Bypass

auth CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

How It Works

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications. Instead of cracking passwords through brute force, attackers manipulate the authentication process itself to gain unauthorized entry. This typically occurs through one of several pathways: exploiting hardcoded credentials embedded in source code or configuration files, manipulating parameters in authentication requests to skip verification steps, or leveraging broken session management that fails to properly validate user identity.

The attack flow often begins with reconnaissance to identify authentication endpoints and their underlying logic. Attackers may probe for default administrative credentials that were never changed, test whether certain URL paths bypass login requirements entirely, or intercept and modify authentication tokens to escalate privileges. In multi-step authentication processes, flaws in state management can allow attackers to complete only partial verification steps while still gaining full access.

More sophisticated variants exploit single sign-on (SSO) or OAuth implementations where misconfigurations in trust relationships allow attackers to forge authentication assertions. Parameter tampering—such as changing a "role=user" field to "role=admin" in a request—can trick poorly designed systems into granting elevated access without proper verification.

Impact

  • Complete account takeover — attackers gain full control of user accounts, including administrative accounts, without knowing legitimate credentials
  • Unauthorized data access — ability to view, modify, or exfiltrate sensitive information including customer data, financial records, and intellectual property
  • System-wide compromise — admin-level access enables installation of backdoors, modification of security controls, and complete infrastructure takeover
  • Lateral movement — bypassed authentication provides a foothold for moving deeper into networks and accessing additional systems
  • Compliance violations — unauthorized access triggers breach notification requirements and regulatory penalties

Real-World Examples

CrushFTP suffered a critical authentication bypass allowing attackers to access file-sharing functionality without any credentials. The vulnerability enabled direct server-side template injection, leading to remote code execution on affected systems. Attackers actively exploited this in the wild to establish persistent access to enterprise file servers.

Palo Alto's Expedition migration tool contained a flaw permitting attackers to reset administrative credentials without authentication. This allowed complete takeover of the migration environment, potentially exposing network configurations and security policies being transferred between systems.

SolarWinds Web Help Desk (CVE-2024-28987) shipped with hardcoded internal credentials that could not be changed through normal administrative functions. Attackers discovering these credentials gained full administrative access to helpdesk systems containing sensitive organizational information and user data.

Mitigation

  • Implement multi-factor authentication (MFA) — requires attackers to compromise additional verification factors beyond bypassed primary authentication
  • Eliminate hardcoded credentials — use secure credential management systems and rotate all default credentials during deployment
  • Enforce authentication on all endpoints — verify every request requires valid authentication; no "hidden" administrative paths should exist
  • Implement proper session management — use cryptographically secure session tokens, validate on server-side, enforce timeout policies
  • Apply principle of least privilege — limit damage by ensuring even authenticated users only access necessary resources
  • Regular security testing — conduct penetration testing specifically targeting authentication logic and flows

Recent CVEs (32023)

EPSS 0% CVSS 6.9
MEDIUM PATCH This Month

Appsmith versions prior to 1.98 allow unauthenticated remote attackers to access sensitive instance management API endpoints (/api/v1/consolidated-api/view, /api/v1/tenants/current) without authentication, enabling disclosure of configuration metadata, license information, and unsalted SHA-256 hashes of admin email domains. This authentication bypass facilitates reconnaissance for targeted follow-up attacks against Appsmith deployments and their administrators. No public exploit code or active exploitation has been independently confirmed at time of analysis.

Authentication Bypass Appsmith
NVD GitHub
EPSS 0% CVSS 9.1
CRITICAL Act Now

HTTP request smuggling in Undertow allows remote unauthenticated attackers to send `\r\r\r` as a header block terminator, which can desynchronize parsing when Undertow sits behind specific intermediaries such as older Apache Traffic Server or Google Cloud Classic Application Load Balancer. The flaw affects numerous Red Hat distributions of Undertow (JBoss EAP 7/8, Data Grid 8, Fuse 7, Camel for Spring Boot 4, RHEL 8/9/10) and carries a CVSS 9.1, though EPSS is only 0.04% and there is no public exploit identified at time of analysis.

Apache Google Authentication Bypass +13
NVD VulDB
EPSS 0% CVSS 9.1
CRITICAL Act Now

HTTP request smuggling in Red Hat Undertow allows remote unauthenticated attackers to bypass front-end security controls by exploiting parsing discrepancies between Undertow and upstream proxies when handling crafted header names. The flaw (CWE-444) affects Undertow embedded in multiple Red Hat products including JBoss EAP 7/8, Data Grid 8, Fuse 7, and Apache Camel for Spring Boot 4, with Red Hat issuing patches via RHSA-2026:25125 and RHSA-2026:25126. There is no public exploit identified at time of analysis and EPSS is low (0.10%), but CVSS 9.1 and SSVC 'total' technical impact warrant prompt patching of internet-facing deployments.

Authentication Bypass Request Smuggling Red Hat Build Of Apache Camel For Spring Boot 4 +11
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM POC This Month

OpenBMB XAgent 1.0.0 ShareServer WebSocket endpoint allows remote authentication bypass through manipulation of the interaction_id parameter in the check_user function, enabling unauthenticated attackers to access protected resources with low confidentiality, integrity, and availability impact. Publicly available exploit code exists, the vendor was contacted but did not respond, and active exploitation remains possible.

Authentication Bypass Xagent
NVD VulDB GitHub
EPSS 0% CVSS 1.3
LOW POC Monitor

OpenBMB XAgent 1.0.0 allows authenticated remote attackers to bypass authorization controls via manipulation of the interaction_id argument in the WebSocket ReplayServer endpoint (XAgentServer/application/websockets/replayer.py), enabling unauthorized access to replay functionality. The vulnerability requires low privileges and is difficult to exploit due to high attack complexity, but publicly available exploit code exists. No vendor patch has been released despite early disclosure notification.

Authentication Bypass Xagent
NVD VulDB GitHub
EPSS 0% CVSS 6.5
MEDIUM This Month

Log router endpoints in an authenticated application expose full application log buffers to any authenticated user without privilege-level authorization checks, allowing credential harvesting, sensitive data exfiltration, and reconnaissance. The vulnerability affects the '/logs' and '/logs-stream' endpoints which enforce only basic authentication ('get_current_active_user') rather than administrative privilege requirements, enabling authenticated attackers with low privileges to read complete application logs containing sensitive information. No public exploit code or active exploitation has been identified at the time of analysis, though the relatively low attack complexity (AC:L) and straightforward authentication bypass mechanism present moderate real-world risk.

Authentication Bypass Langflow
NVD VulDB
EPSS 0% CVSS 6.3
MEDIUM This Month

Langflow's '/api/v1/files/images/{flow_id}/{file_name}' endpoint lacks authentication and authorization enforcement, permitting unauthenticated users to download arbitrary images associated with any flow by supplying or enumerating flow IDs and file names. This authentication bypass affects all versions of Langflow AI's langflow product and enables unauthorized disclosure of potentially sensitive image assets. No public exploit code or active exploitation has been confirmed at the time of analysis.

Authentication Bypass Langflow
NVD VulDB
EPSS 0% CVSS 9.3
CRITICAL PATCH Act Now

Coverity Connect command-line tooling authentication bypass via /token API endpoint allows remote attackers to assume valid user credentials and privileges without proper authentication when a username is known or guessed. The vulnerability stems from missing error handling in authentication logic, enabling attackers to craft specialized HTTP requests that circumvent normal access controls and grant full role-based privileges of the compromised account. No public exploit code or active exploitation has been confirmed at this time.

Authentication Bypass Coverity
NVD GitHub
EPSS 0% CVSS 8.2
HIGH PATCH This Week

Calibre versions prior to 9.6.0 allow remote attackers to exfiltrate arbitrary files from the host system through a combination of path traversal in image handling during file conversion and unauthenticated server-side request forgery in the ebook reader web view's background-image endpoint. An attacker can craft a malicious markdown or text-based file that references files outside the intended directory, then retrieve those files through the unprotected background-image handler without authentication, enabling complete file system disclosure on systems running vulnerable Calibre instances.

Path Traversal SSRF Authentication Bypass +1
NVD GitHub VulDB
EPSS 0% CVSS 5.1
MEDIUM PATCH This Month

Traefik reverse proxy and load balancer versions prior to 2.11.42, 3.6.11, and 3.7.0-ea.3 allow authenticated attackers to inject canonical HTTP header names that override non-canonical headers configured via the `headerField` setting, enabling identity impersonation to backend systems. The vulnerability exploits HTTP header handling inconsistencies where backends read the attacker-supplied canonical header before Traefik's non-canonical configuration, permitting authentication bypass for any identity. Vendor-released patches are available for all affected major versions.

Authentication Bypass Canonical Traefik
NVD GitHub VulDB
EPSS 0% CVSS 6.3
MEDIUM PATCH This Month

Traefik's Knative provider fails to escape user-controlled values when interpolating host and header rules into backtick-delimited expressions, allowing attackers to inject rule syntax and bypass host restrictions in multi-tenant clusters. Versions prior to 3.6.11 and 3.7.0-ea.2 are affected. An attacker can craft malicious Knative ingress configurations to route traffic intended for one tenant to attacker-controlled hosts, enabling unauthorized cross-tenant traffic exposure and service impersonation.

Authentication Bypass Traefik
NVD GitHub VulDB
EPSS 0% CVSS 6.3
MEDIUM This Month

NEC Aterm wireless router series (W1200Ex-MS, WG1200HP2, WG1900HP, WG1800HP3, WG1800HP4, WG1200HP3, WG1200HP4, WG1200HS2, WG1200HS3, WX1500HP, WX3000HP, WX3600HP, WG2600HS, WG2600HS2, WG2600HP4, WG2600HM4, WF1200CR, WG1200CR, and others) suffer from missing authorization controls that enable remote attackers to enumerate device configuration details and modify settings without proper access controls. The vulnerability stems from CWE-862 (Missing Authorization) in the device management interface, allowing unauthenticated or inadequately authenticated network-accessible requests to interact with sensitive administrative functions. No CVSS score, EPSS probability estimate, or public exploit code has been disclosed, and CISA KEV status is unknown.

Authentication Bypass Aterm W1200Ex Ms Aterm Wg1200Hp2 +18
NVD
EPSS 0% CVSS 3.7
LOW POC PATCH Monitor

Open-Xchange Dovecot Pro contains an LDAP filter injection vulnerability in its authentication module that allows remote unauthenticated attackers to inject arbitrary LDAP filters when the auth_username_chars configuration parameter is left empty, potentially enabling authentication bypass and reconnaissance of LDAP directory structures. The vulnerability carries a low CVSS score of 3.7 due to high attack complexity requirements, and no public exploit code has been identified at the time of analysis.

LDAP Authentication Bypass Code Injection
NVD VulDB GitHub
EPSS 0% CVSS 5.9
MEDIUM PATCH This Month

OX Dovecot Pro's doveadm HTTP service is vulnerable to timing oracle attacks during credential verification, allowing remote unauthenticated attackers to enumerate valid credentials through timing analysis and gain full administrative access to the doveadm management interface. The vulnerability affects OX Dovecot Pro installations with exposed doveadm HTTP service ports, carries a CVSS score of 7.4, and has no public exploit identified at time of analysis.

Oracle Authentication Bypass Ox Dovecot Pro
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Firewalld on Red Hat Enterprise Linux 7, 8, 9, and 10, as well as OpenShift Container Platform 4, contains an authentication bypass vulnerability in two D-Bus setters (setZoneSettings2 and setPolicySettings) that allows local unprivileged users to modify runtime firewall configurations without proper authorization. An authenticated local attacker can exploit this to change network security policies, potentially enabling lateral movement or service disruption. No public exploit code has been identified at the time of analysis, though Red Hat has issued security advisories (CVE-2026-4948, Bugzilla #2452086).

Authentication Bypass Red Hat Enterprise Linux 10 Red Hat Enterprise Linux 7 +3
NVD VulDB
EPSS 0% CVSS 6.9
MEDIUM This Month

BUFFALO Wi-Fi router products lack authentication controls on a critical reboot function, allowing remote unauthenticated attackers to forcibly restart affected devices over the network. The vulnerability affects multiple BUFFALO router product lines across unspecified versions. While the CVSS score of 5.3 reflects moderate severity, the attack requires no credentials, no user interaction, and can be executed remotely with low complexity, making it operationally exploitable for denial-of-service attacks against networked BUFFALO routers. No public exploit code or confirmed active exploitation has been identified at the time of analysis.

Authentication Bypass Buffalo Wi Fi Router Products
NVD
EPSS 0% CVSS 8.7
HIGH This Week

BUFFALO Wi-Fi router products allow unauthenticated remote attackers to bypass authentication mechanisms and modify critical configuration settings without valid credentials. This CWE-288 authentication bypass vulnerability affects BUFFALO Wi-Fi router product lines (CVSS 7.5, High severity) and enables complete compromise of device integrity. No public exploit identified at time of analysis, though the network-accessible attack surface and low complexity (AV:N/AC:L/PR:N) increase exposure risk for internet-facing devices.

Authentication Bypass Buffalo Wi Fi Router Products
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

Smart Slider 3 plugin for WordPress allows authenticated attackers with Subscriber-level privileges to read arbitrary files on the server via improper access controls in the 'actionExportAll' function. Affected versions include all releases up to and including 3.5.1.33. The vulnerability exposes sensitive files such as configuration data, database credentials, and private keys to attackers with low-privilege WordPress accounts. No public exploit code or active exploitation has been identified at the time of analysis.

WordPress Authentication Bypass
NVD VulDB
EPSS 0% CVSS 8.9
HIGH PATCH This Week

MyTube versions prior to 1.8.71 allow unauthenticated remote attackers to register arbitrary passkeys and obtain full administrator access without any existing credentials. The vulnerability stems from exposed passkey registration endpoints that lack authentication checks and automatically grant admin tokens to any successfully registered passkey, enabling complete application compromise. Vendor-released patch version 1.8.71 addresses this flaw.

Authentication Bypass Mytube
NVD GitHub VulDB
EPSS 0% CVSS 7.4
HIGH PATCH This Week

MyTube versions prior to 1.8.69 suffer from an authorization bypass in the `/api/settings/import-database` endpoint that allows low-privilege authenticated users to upload and replace the application's SQLite database entirely, resulting in complete application compromise. The vulnerability affects self-hosted instances of MyTube and extends to other POST routes using the same flawed authorization mechanism. No public exploit code or active exploitation has been confirmed at time of analysis, but the fix is available in version 1.8.69.

Authentication Bypass Mytube
NVD GitHub VulDB
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

OpenSourcePOS versions prior to 3.4.2 contain an Insecure Direct Object Reference (IDOR) vulnerability allowing authenticated low-privileged users to modify password change settings for arbitrary users, including administrators, by manipulating the employee_id parameter without authorization checks. The vulnerability affects the web-based PHP/CodeIgniter point-of-sale application and enables account takeover of higher-privileged accounts. No public exploit code has been identified at the time of analysis, though the fix involves adding object-level authorization validation to the affected endpoint.

PHP Authentication Bypass
NVD GitHub
EPSS 0% CVSS 3.1
LOW PATCH Monitor

Open WebUI versions prior to 0.8.6 allow authenticated users to read other users' private memories through an insufficiently restricted API endpoint at `/api/v1/retrieval/query/collection`, exposing sensitive user data stored within the self-hosted AI platform. The vulnerability requires valid authentication credentials and carries a CVSS score of 3.1 with low attack complexity, indicating limited real-world exploitability despite the information disclosure impact. No public exploit code or active exploitation has been confirmed at the time of analysis.

Authentication Bypass Open Webui
NVD GitHub
EPSS 0% CVSS 5.4
MEDIUM PATCH This Month

Open WebUI versions prior to 0.8.6 allow authenticated users to delete arbitrary files from knowledge bases they have write access to, due to missing validation that files actually belong to the target knowledge base. An attacker with legitimate write permissions to any knowledge base can exploit this to delete files from other knowledge bases by crafting requests with known file identifiers, resulting in data loss and service disruption. No public exploit code or active exploitation has been reported at time of analysis.

Authentication Bypass Open Webui
NVD GitHub
EPSS 0% CVSS 7.1
HIGH PATCH This Week

Open WebUI versions prior to 0.8.6 permit authenticated users to overwrite arbitrary file contents through an insecure batch processing endpoint, escalating read-only knowledge base access to write permissions without ownership validation. Attackers with low-level privileges can manipulate RAG (Retrieval-Augmented Generation) content served to language models, poisoning AI responses delivered to other users. CVSS 7.1 (High) reflects network-accessible exploitation with low complexity requiring only standard user authentication; no public exploit identified at time of analysis.

Authentication Bypass Open Webui
NVD GitHub
EPSS 0% CVSS 6.5
MEDIUM This Month

BS Producten Petcam version 33.1.0.0818 fails to enforce access controls on its wireless network interface, allowing unauthenticated attackers within physical proximity to connect to the device's open network and directly access live video and audio streams without authentication. The vulnerability affects a consumer IP camera product and carries a CVSS score of 6.5 (medium severity) driven by high confidentiality impact despite requiring physical proximity. A proof-of-concept and technical analysis are publicly available via GitHub, though no confirmation of active exploitation in the wild has been identified.

Authentication Bypass
NVD GitHub VulDB
EPSS 0% CVSS 4.3
MEDIUM This Month

Blog.Admin versions 8.0 and earlier expose sensitive administrator account information through an improper access control vulnerability in the getinfobytoken API endpoint. An attacker possessing a valid authentication token can bypass authorization checks to retrieve confidential administrator credentials and account details, potentially enabling lateral movement or privilege escalation attacks. No public exploit code or active exploitation has been confirmed at the time of analysis.

Information Disclosure Authentication Bypass N A
NVD GitHub VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Authentication bypass in Incus webui (versions prior to 6.23.0) permits local or remote attackers to gain unauthorized access to the system container and virtual machine manager via an improperly validated authentication token. The vulnerability allows attackers who can reach the temporary localhost web server to escalate privileges to the level of the user running 'incus webui', enabling control over containers, virtual machines, and potentially underlying system resources. CVSS score of 8.8 (High) reflects network attack vector with low complexity requiring user interaction; no public exploit identified at time of analysis.

Authentication Bypass Privilege Escalation Red Hat +1
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

The digitalbazaar/forge npm package accepts forged Ed25519 signatures due to missing scalar canonicalization checks, allowing authentication and authorization bypass in applications that rely on signature uniqueness. All versions since Ed25519 implementation are affected (confirmed through version 1.3.3), identified as pkg:npm/node-forge. Publicly available exploit code exists with a complete proof-of-concept demonstrating how attackers can create multiple valid signatures for the same message by adding the group order L to the scalar component S, bypassing deduplication, replay protection, and signed-object canonicalization checks. The vendor has released a patch via commit bdecf11571c9f1a487cc0fe72fe78ff6dfa96b85.

Node.js Canonical OpenSSL +2
NVD GitHub VulDB
EPSS 0% CVSS 8.1
HIGH PATCH This Week

Red Hat OpenShift AI llama-stack-operator permits unauthorized cross-namespace access to Llama Stack service endpoints due to missing NetworkPolicy enforcement, enabling authenticated users in one namespace to view or modify sensitive data in another user's Llama Stack instances. CVSS 8.1 (High) reflects high confidentiality and integrity impact with low-privilege authenticated network access. No public exploit identified at time of analysis, though the authentication bypass weakness (CWE-653) is architecturally straightforward to leverage once cluster access is obtained.

Red Hat Authentication Bypass Information Disclosure
NVD VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Grafana Tempo leaks S3 SSE-C encryption keys in plaintext through its /status/config endpoint, enabling unauthenticated remote attackers to retrieve encryption keys protecting trace data stored in AWS S3. The CVSS score of 7.5 reflects high confidentiality impact with network-accessible attack vector requiring no privileges or user interaction (AV:N/AC:L/PR:N/UI:N). No public exploit identified at time of analysis, though the attack path is straightforward given the information disclosure nature of the vulnerability.

Grafana Authentication Bypass Red Hat
NVD VulDB
EPSS 0% CVSS 5.3
MEDIUM This Month

The Drupal 7 Internationalization (i18n) module's i18n_node submodule allows authenticated users holding both 'Translate content' and 'Administer content translations' permissions to bypass access controls and view unpublished node titles and IDs through the translation user interface and autocomplete functionality. Affected versions range from 7.x-1.0 through 7.x-1.35. No public exploit code or active exploitation has been confirmed at the time of analysis.

Authentication Bypass Internationalization I18N I18N Node Submodule
NVD HeroDevs VulDB
EPSS 0% CVSS 5.1
MEDIUM PATCH This Month

Cleartext credential storage in TP-Link TL-WR850N v3 flash memory combined with weak serial interface authentication enables attackers with physical access to extract administrative and Wi-Fi credentials, leading to full device compromise and unauthorized network access. The vulnerability is addressed by a vendor patch, and exploitation requires physical proximity to the device's serial port with no public exploit code identified at time of analysis.

Authentication Bypass Tl Wr850N V3
NVD VulDB
EPSS 0% CVSS 9.1
CRITICAL PATCH Act Now

Account takeover in Outline collaborative documentation service versions 0.86.0 through 1.5.x enables unauthenticated attackers to brute force Email OTP codes due to insufficient validation logic combined with rate limiter bypass. Attackers can submit unlimited OTP attempts within the code's validity window, compromising user accounts. CVSS 9.1 (Critical) severity reflects network-accessible attack vector requiring no privileges or user interaction. No public exploit identified at time of analysis, though the authentication bypass mechanism is documented in GHSA-cwhc-53hw-qqx6.

Authentication Bypass Outline
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Unpublished Node Permissions module for Drupal versions prior to 1.7.0 contains an incorrect authorization vulnerability (CWE-863) that permits forceful browsing of unpublished nodes by bypassing access controls. Attackers can view content that should be restricted to specific user roles by directly accessing node URLs, circumventing the module's permission enforcement logic. No public exploit code or active exploitation has been identified at the time of analysis.

Authentication Bypass Unpublished Node Permissions
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Drupal AI module versions 0.0.0 before 1.1.11 and 1.2.0 before 1.2.12 contain an incorrect authorization vulnerability (CWE-863) that enables resource injection attacks. The flaw allows attackers to bypass authorization controls and inject malicious resources, potentially gaining unauthorized access to AI-driven functionality or data within affected Drupal installations. No public exploit code or active exploitation has been confirmed at the time of this analysis.

Authentication Bypass Ai Artificial Intelligence
NVD
EPSS 0% CVSS 5.4
MEDIUM PATCH This Month

Grafana OSS provisioning contact points API fails to enforce the alert.notifications.receivers.protected:write permission, allowing users with the Editor role to modify protected webhook URLs and bypass intended authorization controls. This affects Grafana OSS versions 11.6.9 through 11.6.14, 12.1.5 through 12.1.10, 12.2.2 through 12.2.8, and 12.3.1 through 12.3.6. Authenticated Editor-level users can exploit this to reconfigure webhook destinations, potentially redirecting alert notifications to attacker-controlled endpoints. No public exploit identified at time of analysis.

Grafana Authentication Bypass
NVD VulDB
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

Drupal OpenID Connect / OAuth client versions before 1.5.0 contain an authentication bypass vulnerability that allows attackers to circumvent authentication mechanisms through an alternate path or channel. The vulnerability affects all versions from 0.0.0 through 1.4.x, enabling remote attackers to gain unauthorized access without proper credentials. No CVSS score, EPSS data, or confirmed active exploitation status is currently available; however, the vulnerability's authentication bypass nature and wide version range suggest significant real-world risk to Drupal installations relying on OpenID Connect or OAuth authentication.

Authentication Bypass Openid Connect Oauth Client
NVD HeroDevs
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

Drupal AJAX Dashboard versions before 3.1.0 fail to enforce authentication on critical AJAX endpoints, allowing unauthenticated remote attackers to bypass access controls and invoke privileged dashboard functions. The vulnerability affects all versions from 0.0.0 through 3.1.0 (exclusive) and is categorized as a Missing Authentication for Critical Function (CWE-306). No public exploit code or active exploitation via CISA KEV has been confirmed at time of analysis, but the authentication bypass nature of this defect presents significant risk to installations relying on dashboard security.

Authentication Bypass Ajax Dashboard
NVD
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

Forceful browsing attacks in Drupal File Access Fix (deprecated) versions below 1.2.0 allow unauthenticated remote attackers to bypass file access controls and retrieve unauthorized files through direct path enumeration. The vulnerability stems from incorrect authorization validation in the deprecated module (cpe:2.3:a:drupal:file_access_fix_(deprecated):*:*:*:*:*:*:*:*), affecting all versions from 0.0.0 through 1.1.x. No public exploit code or active exploitation has been identified at time of analysis, but the deprecated status and widespread use of Drupal installations increase real-world risk exposure.

Authentication Bypass File Access Fix Deprecated
NVD
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

Forceful browsing via incorrect authorization in Drupal File Access Fix (deprecated) module versions prior to 1.2.0 allows unauthenticated remote attackers to access files without proper access control checks. The vulnerability stems from CWE-863 (Incorrect Authorization) and affects all versions from 0.0.0 through 1.2.0. No public exploit code or active exploitation has been confirmed at the time of analysis, but the straightforward nature of authorization bypass attacks in file access contexts presents moderate real-world risk to installations still running deprecated versions of this module.

Authentication Bypass File Access Fix Deprecated
NVD
EPSS 0% CVSS 8.4
HIGH PATCH This Week

Local authenticated attackers can bypass file access policies in ClearanceKit (macOS system extension) versions prior to 4.2.4 by using specific file operation event types (ES_EVENT_TYPE_AUTH_EXCHANGEDATA and ES_EVENT_TYPE_AUTH_CLONE) that were not intercepted by the opfilter enforcement mechanism. This policy bypass allows unauthorized file access, modification, and data exfiltration despite configured access controls. EPSS exploitation probability is minimal (0.01%, 2nd percentile) and no active exploitation or public POC has been identified. Patch available in version 4.2.4 via commit 6181c4a, requiring system extension reactivation.

Apple Authentication Bypass
NVD GitHub
EPSS 0% CVSS 8.7
HIGH PATCH This Week

ClearanceKit 4.1 and earlier for macOS allows local authenticated users to completely bypass configured file access policies via seven unmonitored file operation event types. The opfilter Endpoint Security extension only intercepted ES_EVENT_TYPE_AUTH_OPEN events, enabling processes to perform rename, unlink, and five other file operations without policy enforcement or denial logging. Version 4.2 branch contains the fix via commit a3d1733. No public exploit identified at time of analysis, but exploitation requires only local access with low privileges (CVSS PR:L) and no special complexity.

Apple Authentication Bypass
NVD GitHub
EPSS 0% CVSS 5.4
MEDIUM PATCH This Month

Statamic CMS versions prior to 5.73.16 and 6.7.2 fail to enforce collection-level permissions on entry revision endpoints, allowing authenticated control panel users to view revisions and field data across any collection with revisions enabled regardless of their assigned permissions. The vulnerability also permits unauthenticated revision creation that snapshots existing content without modifying published entries. This represents a medium-severity authorization bypass affecting authenticated attackers with control panel access, with no public exploit identified at time of analysis.

Authentication Bypass
NVD GitHub
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

Statamic CMS versions prior to 5.73.16 and 6.7.2 allow authenticated Control Panel users with live preview access to abuse live preview tokens to access restricted content beyond the token's intended scope. This is an authenticated privilege escalation affecting the Statamic CMS product (pkg:composer/statamic_cms) with a CVSS score of 4.3 and low complexity; no public exploit code or active exploitation has been identified at time of analysis.

Authentication Bypass
NVD GitHub
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Tandoor Recipes versions prior to 2.6.0 allow authenticated admin users to bypass space isolation controls and trigger synchronization operations on Sync configurations belonging to other organizational spaces, exposing the ability to initiate Dropbox, Nextcloud, or local imports outside the attacker's own space and access resulting sync logs. The vulnerability stems from missing space validation in the `SyncViewSet.query_synced_folder()` API endpoint, enabling horizontal privilege escalation across multi-tenant deployments. No public exploit code has been identified at the time of analysis.

Authentication Bypass Recipes
NVD GitHub
EPSS 1%
CRITICAL PATCH Act Now

Prototype pollution in convict npm package version 6.2.4 allows attackers to bypass previous security fixes and pollute Object.prototype through crafted input that manipulates String.prototype.startsWith. The vulnerability affects applications processing untrusted input via convict.set() and can lead to authentication bypass, denial of service, or remote code execution if polluted properties reach dangerous sinks like eval or child_process. A working proof-of-concept exploit demonstrating the bypass technique exists in the advisory.

Mozilla Node.js Prototype Pollution +3
NVD GitHub
EPSS 0%
CRITICAL PATCH Act Now

Prototype pollution in Mozilla's node-convict configuration library allows attackers to inject properties into Object.prototype via two unguarded code paths: config.load()/loadFile() methods that fail to filter forbidden keys during recursive merge operations, and schema initialization accepting constructor.prototype.* keys during default-value propagation. Applications using node-convict (pkg:npm/convict) that process untrusted configuration data face impacts ranging from authentication bypass to remote code execution depending on how polluted properties propagate through the application. This represents an incomplete fix for prior prototype pollution issues (GHSA-44fc-8fm5-q62h), with no public exploit identified at time of analysis.

Mozilla Node.js Prototype Pollution +2
NVD GitHub
EPSS 0% CVSS 4.3
MEDIUM This Month

The AVideo AI plugin's save.json.php endpoint fails to validate that AI-generated responses belong to the target video before applying them, allowing authenticated users to exfiltrate private video metadata and full transcriptions by referencing arbitrary AI response IDs. An attacker with canUseAI permission can steal AI-generated titles, descriptions, keywords, summaries, and complete transcription files from other users' private videos through a simple parameter manipulation attack, then apply this stolen content to their own video for reading. No public exploit is confirmed actively exploited, but proof-of-concept methodology is detailed in the advisory, making this a practical attack for any platform user with basic video ownership.

PHP Authentication Bypass
NVD GitHub
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

AVideo playlist video enumeration allows unauthenticated attackers to bypass authorization checks and directly access video contents from private playlists including watch_later and favorite lists via the playlistsVideos.json.php endpoint. Sequential playlist IDs enable trivial enumeration of all users' private viewing habits, favorites, and unlisted custom playlists without authentication. A publicly available proof-of-concept exists demonstrating the vulnerability, which affects WWBN AVideo via Composer package wwbn_avideo.

PHP Authentication Bypass
NVD GitHub
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

FileRise versions 2.3.7 through 3.10.0 suffer from improper access control in the file snippet endpoint, allowing authenticated users with read-only access to retrieve file content uploaded by other users in shared folders. An attacker with limited folder permissions can exploit this authorization bypass to view sensitive files beyond their intended access scope. The vulnerability affects FileRise running on PHP and is resolved in version 3.11.0.

PHP File Upload Authentication Bypass
NVD GitHub
EPSS 0% CVSS 6.5
MEDIUM This Month

Frigate network video recorder versions prior to 0.17.1 allow authenticated users with restricted camera access to enumerate and retrieve snapshots from unauthorized cameras through a two-step authorization bypass in the timeline and snapshot APIs. An attacker with low-privilege credentials limited to one camera can exploit missing validation in the snapshot-clean.webp endpoint to access video evidence from other cameras in the system, compromising the confidentiality of surveillance data across the entire installation. A proof-of-concept exists, though no confirmation of active exploitation in the wild has been reported.

Authentication Bypass Frigate
NVD GitHub VulDB
EPSS 0% CVSS 6.5
MEDIUM This Month

Broken access control in Frigate 0.17.0 allows authenticated non-admin users to retrieve the complete raw configuration file via the `/api/config/raw` endpoint, exposing camera credentials, RTMP stream passwords, MQTT secrets, and proxy authentication tokens that are intentionally redacted from the standard `/api/config` API. The vulnerability stems from inconsistent authorization enforcement between `/api/config/raw_paths` (admin-only) and `/api/config/raw` (authenticated-user-accessible), introduced during an admin-by-default API refactor. Patch version 0.17.1 is available; publicly available exploit code exists but the vulnerability is not confirmed as actively exploited in the wild.

Authentication Bypass Frigate
NVD GitHub VulDB
EPSS 0% CVSS 4.8
MEDIUM PATCH This Month

srvx's FastURL pathname parser on Node.js can be bypassed to circumvent route-based middleware (authentication guards, rate limiters) when absolute URIs with non-standard schemes are sent in raw HTTP requests. An attacker sending a crafted request like `GET file://hehe?/internal/run HTTP/1.1` can cause the router to match a different pathname than what downstream middleware sees after a deoptimization occurs, allowing access to protected endpoints. This affects srvx versions prior to 0.11.13, requires direct HTTP request capability (not browser-accessible), and has a CVSS score of 4.8 with medium complexity attack requirements. No public exploit identified at time of analysis.

Node.js Authentication Bypass
NVD GitHub
EPSS 0% CVSS 5.4
MEDIUM PATCH This Month

Cilium Network Policy enforcement is bypassed for traffic from pods to L7 Services with local backends on the same node when Per-Endpoint Routing is enabled and BPF Host Routing is disabled, allowing authenticated local attackers to circumvent ingress network policies and access restricted services. This affects Cilium v1.19.0-v1.19.1, v1.18.0-v1.18.7, and all versions prior to v1.17.13, with the most common vulnerable deployment being Amazon EKS with Cilium ENI mode. Vendor-released patches are available (v1.19.2, v1.18.8, v1.17.14), and no public exploit code has been identified at the time of analysis.

Microsoft Kubernetes Authentication Bypass +1
NVD GitHub
EPSS 0% CVSS 5.2
MEDIUM PATCH This Month

EVerest charging software stack versions prior to 2026.02.0 allow EV operators to bypass remote stop commands issued by a Charging Station Management System (CSMS) by toggling the EV's Battery Control Box (BCB), causing the EVSE to return to PrepareCharging state and restart charging sessions. This circumvents billing, operational, and safety controls enforced by remote stop functionality. A proof-of-concept exists and the vulnerability has been patched in version 2026.02.0, though the attack requires physical proximity to the charging equipment (CVSS attack vector: Physical).

Authentication Bypass Everest Core
NVD GitHub VulDB
EPSS 0% CVSS 5.2
MEDIUM PATCH This Month

EVerest-core prior to version 2026.02.0 fails to properly terminate EV charging transactions during remote stop operations due to a delayed authorization response that incorrectly restores the authorized flag to true, allowing transactions to remain open even after a PowerOff event triggers stop_transaction(). This authentication bypass affects EV charging infrastructure and enables continued power delivery after an operator-initiated remote stop command. A proof-of-concept exists but no public confirmation of active exploitation has been identified.

Authentication Bypass Everest Core
NVD GitHub VulDB
EPSS 0% CVSS 5.0
MEDIUM PATCH This Month

EVerest EV charging software before version 2026.02.0 fails to properly stop charging transactions when authorization withdrawal occurs before the TransactionStarted event, allowing attackers with high privileges to bypass deauthorization through precise timing and maintain unauthorized charging sessions. The vulnerability stems from incomplete StopTransaction handling in the Charging state, affecting IoT and Everest Core deployments with no currently available patch.

Authentication Bypass Everest Core
NVD GitHub VulDB
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

Mattermost versions 11.2.x through 11.4.x fail to enforce view restrictions on group member endpoints, allowing authenticated guest users to enumerate user IDs beyond their authorized visibility scope. This authorization bypass requires valid credentials but enables attackers to discover internal user information through the group retrieval API. No patch is currently available for affected versions.

Authentication Bypass Mattermost
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

Session invalidation failure in HCL Aftermarket DPC versions up to 1.0.0 allows authenticated attackers to maintain active sessions after a password change, enabling persistent account takeover. An attacker who gains initial session access can continue to operate under a compromised account identity even after the victim resets their password, as the application fails to terminate pre-existing sessions upon credential modification. No public exploit code or active exploitation has been identified at time of analysis.

Authentication Bypass Session Fixation Aftermarket Dpc
NVD
EPSS 0% CVSS 5.9
MEDIUM This Month

HCL Aftermarket DPC versions up to 1.0.0 are vulnerable to session fixation attacks that enable attackers to hijack user sessions and perform unauthorized transactions without requiring valid credentials. The vulnerability exploits improper session management to allow an attacker to force a victim to use a predetermined session identifier, then leverage that session for fraudulent activity. This is a network-accessible flaw requiring user interaction (e.g., clicking a malicious link) but no prior authentication. No public exploit code or active exploitation has been identified at the time of analysis.

Authentication Bypass Aftermarket Dpc
NVD
EPSS 0% CVSS 4.2
MEDIUM This Month

HCL Aftermarket DPC version 1.0.0 enforces weak password policies that enable attackers to conduct brute-force attacks and guess user credentials, potentially gaining unauthorized account access with low confidentiality and availability impact. The vulnerability requires user interaction and high attack complexity to exploit, but affects unauthenticated threat actors over the network. No public exploit code or active exploitation has been identified at the time of analysis.

Authentication Bypass Aftermarket Dpc
NVD
EPSS 0% CVSS 2.6
LOW Monitor

HCL Aftermarket DPC version 1.0.0 contains a Cross-Origin Resource Sharing (CORS) misconfiguration that permits authenticated attackers with low privileges to access sensitive user information and potentially perform unauthorized actions on behalf of legitimate users through browser-based attacks. The vulnerability requires user interaction (such as social engineering to visit a malicious webpage) and operates within a single security context, limiting its scope to confidentiality impact with no integrity or availability consequences. No public exploit code has been identified at the time of analysis, and the low CVSS score of 2.6 reflects the high attack complexity and limited practical exploitability despite the theoretical risk of data exposure.

Information Disclosure Authentication Bypass Aftermarket Dpc
NVD VulDB
EPSS 0% CVSS 8.5
HIGH PATCH This Week

Small HTTP Server 3.06.36 allows local attackers with low privileges to execute arbitrary code through an unquoted service path vulnerability in the http.exe service executable. By placing a malicious executable in a higher-priority directory along the unquoted path 'C:\Program Files (x86)\shttps_mg\http.exe service', attackers can achieve full system compromise with high confidentiality, integrity, and availability impact. No public exploit has been identified at time of analysis, and CISA SSVC framework indicates no current exploitation, though technical impact is rated as total.

RCE Authentication Bypass Small Http
NVD
EPSS 0% CVSS 8.8
HIGH POC This Week

Library CMS 1.0 contains an SQL injection vulnerability that allows unauthenticated attackers to bypass authentication by injecting SQL code through the username parameter. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

SQLi Authentication Bypass Library Cms
NVD Exploit-DB
EPSS 0% CVSS 8.7
HIGH PATCH This Week

Small HTTP Server 3.06.36 contains an unquoted service path vulnerability (CWE-428) allowing local authenticated attackers to execute arbitrary code with elevated privileges by placing malicious executables in higher-priority directories. Despite a CVSS 4.0 score of 8.7, real-world risk is significantly lower with only 0.02% EPSS probability (4th percentile) and no public exploit identified at time of analysis. INCIBE has reported this vulnerability with patches available from the vendor.

RCE Authentication Bypass Small Http
NVD
EPSS 0% CVSS 8.8
HIGH This Week

Vienna Assistant 1.2.542 on macOS allows local privilege escalation through an unauthenticated XPC service endpoint that accepts connections from any process. The vulnerable VSL privileged helper service exposes functions to write arbitrary files to any location and execute arbitrary binaries with any arguments, enabling a low-privileged local user to gain root access. A proof-of-concept exploit exists per SSVC assessment, with an EPSS score of 0.02% indicating low observed exploitation probability in the wild.

Privilege Escalation Authentication Bypass
NVD VulDB
EPSS 0% CVSS 6.9
MEDIUM This Month

HiJiffy Chatbot contains an authorization bypass vulnerability in the /api/v1/webchat/message endpoint that allows unauthenticated attackers to download private messages from arbitrary users by manipulating the 'visitor' parameter. The vulnerability affects all versions of HiJiffy Chatbot (as indicated by the wildcard CPE) and has been reported by INCIBE. No public exploit code or active exploitation has been confirmed at the time of analysis.

Authentication Bypass Hijiffy Chatbot
NVD VulDB
EPSS 0% CVSS 6.9
MEDIUM This Month

An incorrect authorization vulnerability in HiJiffy Chatbot allows unauthenticated attackers to download private messages from arbitrary users by manipulating the 'ID' parameter in the '/api/v1/download/<ID>/' endpoint. This is a classic authorization bypass enabling unauthorized access to sensitive conversation data. No public exploit code or active exploitation has been identified at the time of analysis, though the vulnerability was reported by INCIBE and affects all versions of HiJiffy Chatbot. The exposure is direct and requires only network access to the affected API endpoint.

Authentication Bypass Hijiffy Chatbot
NVD VulDB
EPSS 0% CVSS 4.3
MEDIUM This Month

The Elementor Website Builder plugin for WordPress contains an authorization bypass vulnerability in the is_allowed_to_read_template() function that incorrectly permits authenticated users with contributor-level privileges to read private and draft template content. Attackers can exploit this through the 'get_template_data' action of the 'elementor_ajax' endpoint by supplying a 'template_id' parameter, resulting in exposure of sensitive template information. The vulnerability affects all versions up to and including 3.35.7 with a CVSS score of 4.3 (low-to-moderate severity) and requires low-complexity exploitation with authenticated access.

WordPress Information Disclosure Authentication Bypass +1
NVD VulDB
EPSS 0% CVSS 5.3
MEDIUM This Month

The FormLift for Infusionsoft Web Forms WordPress plugin contains a missing authorization vulnerability (CWE-862) that allows unauthenticated attackers to hijack the site's Infusionsoft OAuth connection. Affected versions through 7.5.21 fail to validate user authentication on critical OAuth handler methods, enabling attackers to intercept temporary OAuth credentials and inject arbitrary OAuth tokens and app domains via the update_option() function. This is a network-accessible, low-complexity vulnerability with no required privileges; while the CVSS score is moderate (5.3), the real-world impact is integrity compromise of the CRM integration layer, potentially affecting customer data flows and automation.

WordPress Authentication Bypass
NVD
EPSS 0% CVSS 4.3
MEDIUM This Month

The Blog2Social plugin for WordPress contains an authorization flaw in the resetSocialMetaTags() function that allows authenticated attackers with Subscriber-level access to permanently delete all social media metadata from the site's post records. The vulnerability exists in all versions up to and including 8.8.2 and affects sites using the Blog2Social: Social Media Auto Post & Scheduler plugin, which is available via the WordPress plugin repository. Attackers can exploit this by crafting AJAX requests with a valid nonce that is broadly available due to the plugin granting the 'blog2social_access' capability to all user roles upon activation, resulting in complete data loss of social media scheduling information across all posts.

WordPress Authentication Bypass
NVD
EPSS 0% CVSS 8.8
HIGH This Week

The Masteriyo LMS plugin for WordPress contains a critical privilege escalation vulnerability that allows authenticated users with Student-level access or higher to elevate their privileges to administrator level. All versions up to and including 2.1.6 are affected. The vulnerability is exploitable over the network with low attack complexity and requires no user interaction, resulting in a critical CVSS score of 9.8, though the CVSS vector indicates no authentication required (PR:N) which conflicts with the description stating Student-level access is needed.

WordPress Privilege Escalation Authentication Bypass
NVD
EPSS 0% CVSS 2.9
LOW POC Monitor

Improper authentication in the password-protected share handler of Kalcaddle Kodbox 1.64 allows remote attackers to bypass access controls through manipulation of the authentication function, despite high attack complexity. Public exploit code exists for this vulnerability, and no patch is currently available from the vendor.

Authentication Bypass PHP
NVD VulDB
EPSS 0% CVSS 8.1
HIGH This Week

OpenEMR contains an Insecure Direct Object Reference (IDOR) vulnerability in the patient notes functionality where authenticated users can modify or delete notes belonging to any patient without proper authorization checks. This affects OpenEMR versions prior to 8.0.0.3 and allows attackers with low-level privileges to access, modify, or delete sensitive medical records they should not have access to. The vulnerability has a CVSS score of 8.1 with high confidentiality and integrity impact, though there is no current evidence of active exploitation in the wild or public proof-of-concept code.

PHP Authentication Bypass
NVD GitHub
EPSS 0% CVSS 7.1
HIGH This Week

OpenEMR versions prior to 8.0.0.3 contain a missing authorization vulnerability in the AJAX deletion endpoint that allows any authenticated user, regardless of assigned role or privileges, to irreversibly delete critical medical data including procedure orders, answers, and specimens for any patient in the system. This is a severe integrity violation in a healthcare application handling protected health information. No evidence of active exploitation (not in CISA KEV) is currently available, though patches have been released.

PHP Authentication Bypass
NVD GitHub
EPSS 0% CVSS 5.4
MEDIUM This Month

OpenEMR versions prior to 8.0.0.3 contain an improper access control vulnerability in the Import/Export functionality that allows authenticated users to bypass UI restrictions and perform unauthorized import and export operations through direct request manipulation. An attacker with valid credentials can extract bulk patient data, access sensitive health records, or modify system data despite not having explicit permissions for these actions. The vulnerability requires valid authentication (PR:L in CVSS) but enables significant data exfiltration and integrity violations once access is obtained.

Authentication Bypass Openemr
NVD GitHub VulDB
EPSS 0% CVSS 4.3
MEDIUM This Month

OpenEMR contains a missing authorization check in the signature retrieval endpoint (portal/sign/lib/show-signature.php) that allows any authenticated patient portal user to access the drawn signature images of arbitrary staff members by manipulating the POST parameter. Versions prior to 8.0.0.3 are affected, and while the companion write endpoint was previously hardened against this issue, the read endpoint was left vulnerable. This is a low-severity information disclosure vulnerability (CVSS 4.3) with limited real-world exploitability due to the requirement for prior authentication and the relatively low sensitivity of signature images compared to full medical records.

PHP Authentication Bypass
NVD GitHub VulDB
EPSS 0% CVSS 5.4
MEDIUM This Month

OpenEMR versions prior to 8.0.0.3 allow authenticated API users to bypass administrative access controls on five insurance company management REST API endpoints due to missing authorization checks. An attacker with valid API credentials but non-administrative OpenEMR privileges can create, read, and modify insurance company records without proper permission validation. The vulnerability requires prior authentication and affects data integrity rather than confidentiality or availability; no public exploit code has been identified, and exploitation probability is very low (EPSS 0.02%).

Openemr Privilege Escalation Authentication Bypass
NVD GitHub VulDB
EPSS 0% CVSS 6.5
MEDIUM This Month

An Insecure Direct Object Reference (IDOR) vulnerability exists in OpenEMR versions prior to 8.0.0.3 within the fee sheet product save logic that allows authenticated users with fee sheet ACL permissions to arbitrarily read, modify, or delete drug_sales records belonging to any patient by manipulating the hidden prod[][sale_id] form field. The vulnerability stems from insufficient authorization checks in the FeeSheet.class.php library, where user-supplied sale_id values are used directly in SQL queries without verifying ownership of the record to the current patient and encounter. With a CVSS score of 6.5 and confirmed patch availability in version 8.0.0.3, this represents a moderate-severity data integrity and confidentiality risk affecting healthcare data.

PHP Authentication Bypass
NVD GitHub
EPSS 0% CVSS 4.0
MEDIUM PATCH This Month

IBM Maximo Application Suite Monitor Component versions 8.10, 8.11, 9.0, and 9.1 contain an improper neutralization vulnerability in log file handling that allows unauthorized users to inject arbitrary data into log messages. An attacker with local access can manipulate log entries to inject malicious content, potentially leading to log tampering and integrity compromise. While the CVSS score of 4.0 reflects low severity with no confidentiality or availability impact, the vulnerability requires no authentication or special privileges, making it a concern for environments with local access controls.

IBM Authentication Bypass
NVD VulDB
EPSS 0% CVSS 8.1
HIGH PATCH This Week

Sonarr, a PVR application for Usenet and BitTorrent users, contains an authentication bypass vulnerability affecting installations configured with authentication disabled for local addresses. Attackers can exploit this flaw to gain unauthorized access to Sonarr instances when deployed without a properly configured reverse proxy that filters malicious headers. The vulnerability affects versions prior to 4.0.16.2942 (nightly/develop) and 4.0.16.2944 (stable/main), with patches now available from the vendor.

Authentication Bypass Sonarr
NVD GitHub VulDB
EPSS 0% CVSS 5.1
MEDIUM PATCH This Month

IBM Concert versions 1.0.0 through 2.2.0 contain an improper channel communication restriction vulnerability that allows privileged users to perform unauthorized actions by bypassing intended endpoint controls. The vulnerability, classified as CWE-923 (Improper Restriction of Communication Channel to Intended Endpoints), has a CVSS score of 5.1 with medium integrity impact and is not currently listed in CISA's Known Exploited Vulnerabilities catalog, though a vendor patch is available.

IBM Authentication Bypass
NVD VulDB
EPSS 0% CVSS 5.7
MEDIUM PATCH This Month

IBM InfoSphere Information Server versions 11.7.0.0 through 11.7.1.6 contain an Insecure Direct Object Reference (IDOR) vulnerability that allows authenticated attackers with low privileges to access sensitive information they should not be authorized to view. An attacker on the same network segment with valid user credentials can bypass authorization controls to read confidential data, though they cannot modify or delete information. A vendor patch is available, and this vulnerability should be prioritized for organizations running affected versions as it enables privilege escalation and data exfiltration within trusted network environments.

IBM Authentication Bypass
NVD VulDB
EPSS 0% CVSS 6.2
MEDIUM PATCH This Month

IBM Concert versions 1.0.0 through 2.2.0 contain hard-coded credentials accessible to local users, enabling unauthorized authentication bypass and potential privilege escalation. An attacker with local access can extract these credentials to gain unauthorized system access without requiring network connectivity or user interaction. This vulnerability is classified as moderate severity (CVSS 6.2) with high confidentiality impact but no direct integrity or availability impact.

IBM Authentication Bypass
NVD VulDB
EPSS 0% CVSS 8.6
HIGH PATCH This Week

The yansongda/pay PHP library contains an authentication bypass vulnerability that allows attackers to forge WeChat Pay payment notifications by including a 'Host: localhost' header in HTTP requests. The verify_wechat_sign() function unconditionally skips RSA signature verification when it detects localhost as the hostname, enabling attackers to send fake payment success callbacks that applications may process as legitimate transactions. A proof-of-concept exploit exists demonstrating the attack, though the vendor notes most production environments with properly configured reverse proxies, WAFs, or CDNs will reject forged Host headers, significantly reducing real-world exploitability.

Nginx PHP Authentication Bypass
NVD GitHub
EPSS 0% CVSS 6.3
MEDIUM PATCH This Month

n8n contains an LDAP injection vulnerability in the LDAP node's filter escape logic that allows LDAP metacharacters to pass through unescaped when user-controlled input is interpolated into LDAP search filters. This affects n8n versions prior to 1.123.27, 2.13.3, and 2.14.1, enabling attackers to manipulate LDAP queries to retrieve unintended directory records or bypass authentication controls implemented within workflows. The vulnerability requires specific workflow configuration (LDAP node receiving external user input via expressions) and has not been publicly reported as actively exploited, though no proof-of-concept availability is explicitly confirmed across available intelligence sources.

LDAP Authentication Bypass Code Injection
NVD GitHub VulDB
EPSS 0% CVSS 6.3
MEDIUM POC PATCH This Month

n8n versions prior to 2.5.0 contain a critical SSH host key verification bypass in the Source Control feature that allows network-positioned attackers to perform man-in-the-middle attacks against Git operations. Affected users who have explicitly enabled and configured SSH-based source control can have their workflows injected with malicious content or have repository data intercepted without authentication. While the feature is non-default and requires explicit configuration, the vulnerability enables complete compromise of workflow integrity and potential lateral movement within automation pipelines.

Authentication Bypass N8n
NVD GitHub VulDB
EPSS 0% CVSS 7.3
HIGH POC PATCH This Week

Authenticated users in n8n versions prior to 1.123.23 and 2.6.4 can bypass external secrets permission checks to retrieve plaintext secret values from configured vaults by referencing secrets by name in credentials, even without list permissions. This allows unauthorized access to sensitive vault-stored credentials without requiring admin or owner privileges, provided the attacker knows or can guess the target secret name. Public exploit code exists for this vulnerability.

Authentication Bypass Hashicorp
NVD GitHub VulDB
EPSS 0% CVSS 6.3
MEDIUM POC PATCH This Month

This vulnerability in n8n (an open-source workflow automation platform) is an authentication bypass in the OAuth callback handler that occurs when the N8N_SKIP_AUTH_ON_OAUTH_CALLBACK environment variable is explicitly set to true. An attacker can manipulate the OAuth state parameter verification to trick a victim into completing an OAuth flow that stores the victim's OAuth tokens in an attacker-controlled credential object, allowing the attacker to execute workflows using the victim's delegated permissions. The vulnerability affects n8n versions prior to 2.8.0 and requires non-default configuration to be exploitable, limiting its widespread impact but creating significant risk for affected deployments.

Authentication Bypass N8n
NVD GitHub VulDB
EPSS 0% CVSS 8.8
HIGH POC PATCH This Week

Authenticated n8n users can hijack administrator accounts when LDAP authentication is enabled by manipulating their LDAP email attribute to match a target account's email address, gaining full access that persists even after reverting the email change. This authentication bypass (CWE-287) affects n8n versions prior to 2.4.0 and 1.121.0 where LDAP is configured, and public exploit code exists. The vulnerability requires LDAP to be actively enabled and the attacker to control their own LDAP email attribute, creating a critical account takeover risk for administrators.

Authentication Bypass N8n
NVD GitHub VulDB
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Quick Facts

Typical Severity
CRITICAL
Category
auth
Total CVEs
32023

MITRE ATT&CK

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