Authentication Bypass
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 (37455)
Authorization bypass in elixir-grpc (grpc library for Elixir) versions 0.8.0 through 0.x allows authenticated attackers to override path-bound URL parameters via query string or request body values, defeating ownership and multi-tenancy checks. The flaw stems from incorrect Map.merge/2 precedence in GRPC.Server.Transcode.map_request/5, where attacker-controlled query/body values silently overwrite the router-extracted path bindings used by handlers for authorization. No public exploit identified at time of analysis, but upstream patch and detailed regression tests are publicly available.
Authentication bypass in @nestjs/platform-fastify versions 11.1.23 and earlier allows remote attackers to skip route-scoped middleware (including authentication and authorization checks) by simply appending a trailing slash to the request URL. The flaw affects default Fastify adapter configurations with standard CRUD routes registered via MiddlewareConsumer.forRoutes(), and no public exploit identified at time of analysis despite the trivially low exploitation effort.
Unauthenticated Insecure Direct Object References in the VikRentCar WordPress plugin versions 1.4.5 and earlier allow remote attackers to access sensitive resources belonging to other users by manipulating predictable object identifiers. The flaw was disclosed via Patchstack and affects WordPress sites running the e4jvikwp VikRentCar booking plugin, with no public exploit identified at time of analysis but a high CVSS confidentiality impact reflecting potential exposure of booking, customer, or reservation data.
Unauthenticated broken access control in the Knit Pay WordPress plugin versions 9.4.0.0 and earlier allows remote attackers to modify integrity-sensitive data without any authentication or user interaction. The flaw is rooted in missing authorization checks (CWE-862) on plugin endpoints, and while no public exploit identified at time of analysis, the network-reachable nature and zero prerequisites make it attractive for opportunistic abuse against WordPress sites running this payment plugin.
Unauthenticated broken access control in the Hippoo Mobile App for WooCommerce WordPress plugin (versions 1.9.5 and earlier) allows remote attackers to access protected functionality or data without valid credentials. The flaw is reported by Patchstack and stems from missing authorization checks (CWE-862), enabling unauthenticated retrieval or manipulation of resources that should be gated behind authentication. No public exploit identified at time of analysis, and it is not currently listed in CISA KEV.
Unauthorized data tampering in the WPC Product Bundles for WooCommerce WordPress plugin (versions 8.5.3 and earlier) allows remote attackers to manipulate plugin state without authentication due to missing authorization checks. Reported by Patchstack, the flaw carries a CVSS 7.5 reflecting high integrity impact with no confidentiality or availability impact, and no public exploit identified at time of analysis.
Unauthenticated broken access control in the TrueBooker WordPress appointment-booking plugin (versions ≤ 1.1.9 by ThemeTechMount) allows remote attackers without credentials to invoke privileged plugin functionality that should be restricted, exposing booking data and permitting unauthorized state changes. The flaw is tracked by Patchstack and rated CVSS 9.1 with network attack vector and no privileges or user interaction required; no public exploit identified at time of analysis and the issue is not currently listed in CISA KEV.
Broken access control in the Montonio for WooCommerce WordPress plugin versions 10.1.2 and earlier allows remote unauthenticated attackers to perform integrity-impacting actions without proper authorization checks. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) indicates the flaw is trivially reachable over the network against default deployments, with high integrity impact but no direct confidentiality or availability consequences. No public exploit identified at time of analysis, and the vulnerability is not currently listed in CISA KEV.
Unauthenticated sensitive data exposure in the EmbedPress WordPress plugin (versions 4.5.2 and earlier) allows remote attackers to retrieve confidential information from affected sites without any credentials or user interaction. The CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates trivial network exploitation against any vulnerable installation, though no public exploit identified at time of analysis. The flaw was disclosed via Patchstack and is classified under CWE-639, suggesting authorization checks are bypassed via predictable or user-controlled object references.
Unauthorized data access in the WordPress Simple Shopping Cart plugin (versions <= 5.2.9) allows remote unauthenticated attackers to retrieve sensitive information belonging to other users through an Insecure Direct Object Reference (IDOR) flaw. Per the CVSS vector (AV:N/AC:L/PR:N/UI:N), exploitation is network-reachable with low complexity and no authentication. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Broken access control in the Contact Form by WPForms plugin (versions <= 1.10.0.4) for WordPress allows remote unauthenticated attackers to perform unauthorized actions affecting data integrity. The flaw stems from missing authorization checks (CWE-862) on plugin functionality, enabling tampering without any credentials or user interaction. No public exploit identified at time of analysis, and EPSS data was not provided in the input.
Unauthenticated information disclosure in the Salon Booking System WordPress plugin (versions up to and including 10.30.25) allows remote attackers to bypass authorization checks and access sensitive data without credentials. The flaw, tracked by Patchstack and tagged as an authentication bypass, is network-reachable with low complexity and no user interaction. No public exploit identified at time of analysis, and the vulnerability is not listed in CISA KEV.
Unauthenticated broken access control in the AI Product Search for WooCommerce - Motive Commerce Search WordPress plugin (versions <= 1.38.2) allows remote attackers to invoke privileged functionality without authentication, leading to data integrity tampering and significant availability impact on affected WooCommerce storefronts. Reported by Patchstack with no public exploit identified at time of analysis and no CISA KEV listing, the issue stems from missing authorization checks (CWE-862) on plugin endpoints reachable over the network with no user interaction.
Broken access control in the QuantumCloud ChatBot plugin for WordPress (versions <= 7.9.7) allows authenticated low-privileged users (Subscriber role) to invoke restricted plugin functionality without proper authorization checks, leading to integrity tampering and availability disruption. Reported by Patchstack and tracked as EUVD-2026-36991, with no public exploit identified at time of analysis.
Unauthenticated information disclosure in the Arraytics WP Event Solution (Eventin) WordPress plugin through version 4.1.8 allows remote attackers to bypass access control checks and read data they should not be permitted to access. The flaw was disclosed by Patchstack and tracked as EUVD-2026-36985; no public exploit code has been identified at time of analysis, and the vulnerability is not listed in CISA KEV.
Broken access control in the Royal MCP WordPress plugin (versions 1.4.2 and earlier) allows remote attackers to invoke protected functionality without proper authorization checks. The flaw, classified as CWE-862 (Missing Authorization), was reported by Patchstack and tracked as EUVD-2026-36984. No public exploit identified at time of analysis, and the CVSS 7.3 score reflects low-complexity network exploitation with partial impact across confidentiality, integrity, and availability.
Unauthenticated broken access control in the SaaSProject Booking Package WordPress plugin versions 1.7.06 and earlier allows remote attackers to invoke privileged plugin functionality without authentication, resulting in unauthorized modification of booking data (CVSS 7.5, integrity-only impact). The flaw is a CWE-862 Missing Authorization issue disclosed via Patchstack and tracked in ENISA EUVD as EUVD-2026-36983, with no public exploit identified at time of analysis.
Broken access control in the Redsys for WooCommerce Light WordPress plugin (versions up to and including 7.0.0) allows remote unauthenticated attackers to invoke privileged functionality without proper authorization checks, leading to integrity impact on payment gateway operations. The flaw stems from missing authorization (CWE-862) on plugin endpoints, and at time of analysis no public exploit was identified, though the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) makes it trivially reachable. The vulnerability was reported by Patchstack and tracked as EUVD-2026-36973.
Unauthenticated broken access control in the WP Directory Kit WordPress plugin (versions ≤ 1.5.0) allows remote attackers to bypass authorization checks on plugin endpoints and access functionality or data that should require authentication. The flaw was disclosed via Patchstack and tracked as EUVD-2026-36963; no public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Availability-impacting broken access control in the AWP Classifieds (Another WordPress Classifieds Plugin) WordPress plugin through version 4.4.4 allows unauthenticated remote attackers to invoke privileged functionality due to a missing authorization check (CWE-862). The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/C:N/I:N/A:H) indicates the flaw exposes a sensitive action - most plausibly a destructive or resource-consuming operation - over the network with no credentials or user interaction. No public exploit identified at time of analysis.
Broken access control in the Masteriyo - LMS WordPress plugin (versions up to and including 2.1.5) allows remote unauthenticated attackers to bypass payment workflows and tamper with protected resources without authorization. The Patchstack advisory characterizes this as a payment bypass issue rooted in a missing authorization check (CWE-862), and no public exploit identified at time of analysis. EPSS data was not provided and the CVE is not currently listed in CISA KEV.
Insecure direct object reference in the EventPrime WordPress plugin (versions up to and including 4.3.0.0) allows authenticated users holding only the low-privilege Subscriber role to access or manipulate event records belonging to other users by tampering with object identifiers. The flaw was disclosed by Patchstack and carries CVSS 7.1 reflecting high confidentiality impact with limited integrity impact, but no public exploit identified at time of analysis and no CISA KEV listing. Because WordPress sites frequently allow open subscriber registration, the low PR:L barrier is practically trivial to clear on affected installations.
Unauthenticated information disclosure in the Easy Appointments WordPress plugin (versions ≤ 3.12.21) allows remote attackers to access protected appointment data without authentication due to missing authorization checks. Patchstack reports the issue as a broken access control flaw with high confidentiality impact (CVSS 7.5); no public exploit identified at time of analysis, and the plugin is not currently listed in CISA KEV.
Unauthenticated broken access control in the Easy Digital Downloads WordPress plugin (versions <= 3.6.5) allows remote attackers to invoke privileged plugin functions without authentication, leading to unauthorized modification of plugin data. The flaw stems from a missing authorization check (CWE-862) and primarily impacts integrity of the affected WordPress sites. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Broken access control in the Event Tickets Manager for WooCommerce WordPress plugin (versions up to and including 1.5.3) allows remote unauthenticated attackers to perform restricted actions or modify data without proper authorization checks. The flaw stems from a missing authorization layer (CWE-862) on one or more plugin endpoints, making it reachable directly over HTTP by anyone who can talk to the WordPress site. No public exploit has been identified at time of analysis, but the vulnerability was reported by Patchstack and is tracked under EUVD-2026-36920.
Broken access control in the WordPress Simple Membership plugin (versions ≤4.7.1) allows remote unauthenticated attackers to modify protected resources due to missing authorization checks. The flaw, reported by Patchstack and tracked as EUVD-2026-36917, carries a CVSS 3.1 score of 7.5 reflecting high integrity impact with no confidentiality or availability effect. No public exploit identified at time of analysis, but the network-reachable, no-auth profile makes WordPress sites running this plugin a realistic target.
Authentication bypass in the MagePeople WpTravelly WordPress plugin through version 2.1.7 allows remote unauthenticated attackers to circumvent identity verification and tamper with integrity-protected data. The flaw, reported by Patchstack and tracked as EUVD-2026-36914, is a CWE-290 Authentication Bypass by Spoofing impacting tour booking workflows on any WordPress site running the affected plugin. No public exploit identified at time of analysis, but the network-reachable, no-interaction attack vector elevates urgency for site operators.
Unauthenticated availability-impacting broken access control affects the ThemeGrill User Registration WordPress plugin versions 5.1.2 and earlier, allowing remote attackers to invoke privileged actions without credentials. The CVSS 7.5 score (AV:N/AC:L/PR:N/UI:N) reflects pure availability impact (A:H) with no confidentiality or integrity loss, and no public exploit identified at time of analysis. The flaw is classified as CWE-862 Missing Authorization and tracked by Patchstack and ENISA EUVD-2026-36911.
Authentication bypass in Discuz! X5.0 releases 20260320 through 20260501 allows unauthenticated remote attackers to access database backup and restore functionality exposed by dbbak.php. The flaw stems from a shared cryptographic key (CWE-323) between UCenter integration and the backup API, which lets an attacker abuse an encryption oracle in logging_ctl::logging_more() to mint legitimately signed authorization tokens, and chain a race condition to impersonate arbitrary users. Publicly available exploit code exists and an upstream fix has been published on Gitee.
Authorization bypass in Symfony's Security component (symfony/security-http) lets unauthenticated attackers reach access_control-protected GET routes by abusing the DefaultAuthenticationFailureHandler. When a firewall uses form-login (or any authenticator on that handler) with failure_forward: true, an attacker-supplied _failure_path parameter is dispatched as a trusted internal SUB_REQUEST that skips the Firewall/AccessListener perimeter, exposing protected read endpoints such as data exports and internal APIs. No public exploit identified at time of analysis, and the flaw is not in CISA KEV; CVSS 4.0 base is 8.7 (High) reflecting high confidentiality impact with no auth required, though it depends on the non-default failure_forward configuration.
Authorization bypass in Mastodon's experimental Collections feature allows remote attackers to forge FeatureAuthorization objects and falsely list non-consenting accounts in remote Collections. The flaw stems from a missing cross-reference between the featured object's actor URI and the authorization's interactionTarget, letting an attacker assert consent on behalf of another account on the same domain. Patched in 4.6.0-beta.1; no public exploit identified at time of analysis and the issue only manifests when the EXPERIMENTAL_FEATURES env var explicitly enables 'collections'.
Authentication bypass in WP Engine's Faust.js (faustwp) plugin through version 1.8.7 enables password recovery exploitation, allowing an attacker with low privileges to abuse an alternate authentication path and take over accounts. The flaw maps to CWE-288 and carries a CVSS 3.1 score of 8.8 (high) with full confidentiality, integrity, and availability impact. No public exploit identified at time of analysis, but the low attack complexity and network vector make this a high-priority concern for WordPress headless deployments.
Improper access control in MIA Technology Inc. Pizzy Library versions 1.0.0.26250 through 1.3.9.26250 allows authenticated remote attackers to bypass authorization checks and access resources or actions outside their permission level. The flaw was reported by TR-CERT and carries a CVSS 3.1 base score of 7.1, with high confidentiality impact but only low integrity impact and no availability impact; no public exploit identified at time of analysis.
Account takeover in team-alembic AshAuthentication (0.1.0 to <4.14.0 and 5.0.0-rc.0 to <5.0.0-rc.10) lets an unauthenticated attacker hijack any local user account by completing an OAuth2 or OIDC sign-in with the victim's email address. The library matched federated logins to local users by email rather than by the OpenID Connect iss/sub pair, so any accepted provider that allows an attacker to register or reuse the victim's email - including providers that return email_verified: false - resolves to the victim's existing account. No public exploit identified at time of analysis, but the underlying technique (OIDC email-claim takeover) is well-documented and trivially reproducible.
Authorization bypass in Wertheim SafeController Software (AssemblyVersion 6.15.8328.28014) enables low-privileged authenticated users to reach hidden web endpoints and perform restricted operations including branch switching, arbitrary file upload/download, and viewing details of arbitrary branches. The flaw stems from missing access control on endpoints that exist server-side but are not surfaced in the UI, breaking the product's tenancy/segregation between branches. No public exploit identified at time of analysis; CVSS 4.0 base score is 8.6 (high).
Cross-branch authorization bypass in Wertheim SafeController Software (AssemblyVersion 6.15.8328.28014) allows an authenticated low-privileged branch user to tamper with WebSocket messages handled by the SafeController WebMessageBroker and act on safe-deposit boxes belonging to other branches. The flaw stems from missing tenant/branch enforcement on supplied controller identifiers, enabling activation of vault boxes outside the user's authorized scope. No public exploit identified at time of analysis, and the CVE is not listed in CISA KEV.
Server-Side Request Forgery in Project Firefly III v6.5.9 allows remote attackers to scan internal network resources by abusing improper access controls in the webhook management component via crafted POST requests. SSVC indicates a proof-of-concept exists and exploitation is automatable with total technical impact, though EPSS remains low (0.15%) and no public exploit identified at time of analysis beyond a referenced gist. The flaw is unauthenticated per the CVSS vector (PR:N) and provides a pivot point into otherwise unreachable internal services.
Privilege escalation in Filestash v0.4.0 lets a low-privileged authenticated user reach the administrative /admin/api/config endpoint by sending a crafted request, because that endpoint fails to enforce proper access control (CWE-284). An attacker who already holds a limited session can read and rewrite the server's global configuration, effectively gaining admin control. SSVC rates technical impact as total; publicly available exploit code exists (a proof-of-concept gist), but there is no evidence of active exploitation and EPSS is low at 0.18% (8th percentile).
Privilege escalation in Statping-ng v0.93.0 lets an authenticated low-privileged user elevate to Administrator and reach sensitive components, effectively bypassing the application's authorization model (CWE-284). The flaw carries a high CVSS of 8.8 and total technical impact per CISA SSVC, and a public gist reference suggests exploit details are available, though CISA KEV shows no confirmed active exploitation and EPSS probability is low (0.15%, 4th percentile).
Unauthorized information disclosure in Sismics Docs (Teedy) v1.11 allows remote attackers to bypass access controls on share-based read endpoints and retrieve sensitive document data via crafted requests. The flaw stems from broken access control logic (CWE-284) on endpoints intended for shared documents, enabling unauthenticated retrieval of resources that should be restricted. There is no public exploit identified at time of analysis, EPSS is low (0.15%), and the vulnerability is not listed in CISA KEV.
Privilege escalation in impworks Bonsai v6.0 lets an authenticated user holding only Editor rights bypass access controls (CWE-284) to gain full Administrator control, enabling unauthorized account, password, and configuration changes. Exploitation is network-based and low-complexity but requires valid Editor credentials (CVSS 8.1, PR:L). Publicly available exploit code exists (a proof-of-concept gist is referenced and SSVC marks exploitation as 'poc'), though EPSS is low at 0.15% and the flaw is not in CISA KEV - no public exploit identified as actively weaponized at time of analysis.
Cross-tenant webhook tampering in Deck9 Input v2.0.1 lets any authenticated user modify or delete webhooks belonging to other tenants by targeting the /{form}/webhooks/{webhook} endpoint with a crafted request. Because the endpoint fails to verify that the requesting tenant owns the referenced webhook (a classic broken-access-control / IDOR pattern), attackers can silently redirect, corrupt, or destroy another organization's integration data. Publicly available exploit code exists (proof-of-concept gist), though EPSS remains low at 0.15% and the flaw is not listed in CISA KEV.
Authentication bypass in ThingsBoard IoT platform v4.3.0.1 lets a remote, unauthenticated attacker take over any account by tampering with the user-supplied 'user' JSON parameter during the OAuth2 authorization-code exchange at /login/oauth2/code/. Because the application trusts the attacker-controlled email in that object, swapping it for a victim's address yields a fully authenticated session with no credentials required. Publicly available exploit code exists (a POC gist), SSVC rates it automatable with total technical impact, but EPSS is low at 0.23% (14th percentile) and it is not on CISA KEV.
Remote code execution in Bludit CMS before 3.18.4 allows attackers with a valid API token to upload a malicious PHP script via the API plugin's /api/files/{key} endpoint. The vulnerability arises from missing authorization checks and lack of file extension validation, enabling arbitrary code execution on the server. A public proof-of-concept exists, but no active exploitation has been confirmed (not in CISA KEV) and EPSS score is low (0.21%).
Remote unauthenticated authentication bypass in Nefteprodukttekhnika BUK TS-G Gas Station Automation System 2.9.1 through 2.10.2 on Linux allows any HTTP client to obtain administrator-level access by POSTing arbitrary credentials to /php/ajax-login.php, which unconditionally returns userid=1. Downstream privileged endpoints under /php/ajax-main.php and /modules/* fail to validate a server-side session, exposing full control over fuel dispensers, tank gauges, pricing, POS, bank terminals, and relays. No public exploit identified at time of analysis, but a public reference to a proof-of-concept repository (ciprobe/bukts_auth_bypass) suggests trivially reproducible exploitation against ICS/OT infrastructure.
Denial of service in Capgo before 12.128.2 allows remote unauthenticated attackers to lock legitimate users out of the platform for 30 days by registering accounts with arbitrary unverified email addresses and immediately initiating account deletion, placing the targeted email in a pending-deletion lock state. The CVSS 4.0 score of 8.7 (High) reflects high availability impact achievable over the network without privileges or interaction; no public exploit identified at time of analysis, though the attack is trivially reproducible from the description.
Authorization bypass in OpenClaw's QQBot component before version 2026.4.27 allows authenticated senders to invoke slash commands before allowFrom policy checks execute, effectively skipping operator-configured access controls. The flaw stems from pre-dispatch command handling that runs prior to policy enforcement, enabling blocked senders to trigger command handlers depending on deployment configuration. No public exploit identified at time of analysis, and CVSS 4.0 scoring of 8.2 reflects high integrity impact with an attack requirement (AT:P) suggesting non-trivial conditions.
Authorization bypass in OpenClaw versions prior to 2026.4.29 allows authenticated QQBot senders to modify streaming configuration without satisfying the intended allowFrom allowlist policy, when those entries lack non-wildcard restrictions. The flaw stems from missing identity verification on the QQBot streaming command path (CWE-290) and was reported by VulnCheck; no public exploit identified at time of analysis.
Identity header forgery in OpenClaw before 2026.5.18 allows local same-host callers with access to the proxy-facing Gateway port to spoof trusted-proxy identity headers and assume operator identity. The flaw stems from missing validation of headers normally set by an upstream trusted proxy, enabling privilege escalation when the Gateway port is reachable locally. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Command approval bypass in OpenClaw versions prior to 2026.5.18 allows authenticated users to smuggle malicious instructions past human approvers by exploiting how the approval UI truncates oversized exec commands. The flaw (CWE-451, UI misrepresentation) lets an attacker craft a request with a benign-looking prefix while a malicious suffix is hidden from the reviewer's display, resulting in unauthorized execution once the request is approved. No public exploit identified at time of analysis and the CVE is not currently listed in CISA KEV.
Authorization bypass in OpenClaw before 2026.5.6 allows authenticated senders to invoke owner-only native commands without satisfying the configured owner-command policy. Any user with valid credentials can therefore execute privileged operations reserved for the resource owner, undermining the access control model. No public exploit identified at time of analysis, but a GitHub Security Advisory (GHSA-p73f-w79w-jqr5) and a VulnCheck advisory document the flaw.
Privilege escalation in OpenClaw before 2026.5.3 allows attackers with access to a Slack account to spoof identity by changing their mutable Slack display name to match an allowFrom policy entry, gaining agent access intended for another user. The root cause is authentication binding to a mutable identifier (CWE-290) rather than a stable Slack user ID. No public exploit identified at time of analysis, though an upstream advisory (GHSA-c29c-2q9c-pc86) and VulnCheck writeup describe the flaw in detail.
Privilege escalation in OpenClaw before 2026.5.18 allows WebSocket-connected Control UI clients to claim operator.admin scope without server-side validation against pairing or trusted-proxy authorization state. Attackers with low-privileged WebSocket access can invoke admin-gated Gateway RPCs, and no public exploit identified at time of analysis despite CVSS 4.0 score of 8.7.
Unauthenticated information disclosure in File Browser (filebrowser/filebrowser) versions <= 2.63.5 allows public share recipients to bypass owner-defined deny rules and read or list files explicitly blocked beneath a shared directory. The flaw stems from the public share handler rebasing the filesystem root but evaluating access rules against the rebased relative path rather than the owner's original scope. No public exploit identified at time of analysis, but a detailed PoC accompanies the GHSA advisory and EPSS sits at 0.04% (13th percentile).
Cross-user share-link deletion in File Browser (filebrowser/filebrowser v2 ≤ 2.63.5) lets a low-privileged authenticated user with create+delete permissions in their own isolated scope irrevocably wipe share-link records owned by any other account, including the administrator. Deleting a file whose logical path is a byte-prefix of another user's stored share.Link.Path triggers an unbounded prefix match that bypasses the per-user ownership check enforced everywhere else. There is no public exploit identified at time of analysis, and EPSS exploitation probability is negligible (0.02%, 5th percentile), but a vendor patch (v2.63.6) is available.
Prototype pollution in ApostropheCMS versions up to and including 4.30.0 allows an authenticated editor to poison Object.prototype via the $pullAll patch operator, ultimately bypassing authorization on all piece-type REST API endpoints for unauthenticated requests until the Node.js process restarts. The flaw stems from apos.util.set() failing to sanitize __proto__ in dot-notation paths, and no public exploit identified at time of analysis but the advisory describes a confirmed exploitation gadget in publicApiCheck(). No vendor-released patch identified at time of analysis, making this an open-window risk for any internet-exposed editor account.
Mass assignment flaws in MISP (Malware Information Sharing Platform) let authenticated users overwrite server-controlled fields such as id, org_id, orgc_id, and user_id when submitting requests to several edit endpoints, enabling ownership transfer, hijacking of arbitrary collection/delegation/proposal records, and unauthorized access to threat-intelligence objects belonging to other organizations. No public exploit identified at time of analysis, and the issue is not in CISA KEV; the underlying CWE-639 weakness is addressed by upstream commit 9341690.
Mass assignment in MISP's sharing group creation endpoint allows authenticated users with add-sharing-group permission to hijack arbitrary existing sharing groups by submitting the target group's primary key in the add() request. The CakePHP create()+save() pattern treats a supplied id as an update, bypassing the normal edit ACL on app/Controller/SharingGroupsController.php and exposing confidentiality and integrity of shared threat intelligence. No public exploit identified at time of analysis, though a fix commit is publicly visible on GitHub.
Privilege escalation in MISP (Malware Information Sharing Platform) allows an authenticated organization administrator to target site administrator accounts within their own organization via the administrative email functionality, enabling privileged actions such as triggering a password-reset workflow against a higher-privileged user. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV. Successful exploitation results in full takeover of the targeted site admin account and complete compromise of the MISP instance.
Missing authentication in @agenticmail/mcp prior to 0.9.27 allows unauthenticated remote clients to invoke master-key-only MCP tools when the server is started with --http or MCP_HTTP=1. The /mcp Streamable HTTP endpoint accepts session initialization and tool calls without any Authorization check, and the server forwards calls using its configured AGENTICMAIL_MASTER_KEY, enabling administrative actions such as setup_email_relay, delete_agent, and send_test_email. Publicly available exploit code exists in the GHSA advisory (one-command PoC), though EPSS remains low at 0.06% (19th percentile) and the issue is not on CISA KEV.
Device takeover in Naxclow's IoT platform (Smart Doorbell X3, X Smart Home, V720, and iX Cam) allows any authenticated attacker to silently reassign victim devices to their own account by replaying the onboarding confirm-then-bind sequence. The affected endpoints validate request signatures but never verify legitimate ownership, enabling remote hijacking without user interaction or device-side awareness. No public exploit identified at time of analysis, but the issue is reported via CISA ICS-CERT advisory ICSA-26-162-02.
Unauthorized credential disclosure in the Naxclow IoT platform API (affecting Smart Doorbell X3, X Smart Home, V720, and Ix Cam) allows any actor who can produce a platform-valid request signature to retrieve the persistent relay-registration credentials of arbitrary devices. Reported via CISA ICS-CERT (ICSA-26-162-02), the flaw enables an attacker to impersonate a victim device on the relay and intercept or disrupt its traffic; no public exploit identified at time of analysis.
Authentication bypass in SimpleHelp 5.5.15 and prior (plus 6.0 pre-release builds) allows remote unauthenticated attackers to forge OIDC identity tokens and obtain fully authenticated technician sessions, because the server accepts ID tokens without verifying their cryptographic signature. Publicly available exploit code exists and the flaw can also bypass MFA in some configurations, making vulnerable remote-support deployments a high-priority target despite no current CISA KEV listing.
Denial of service in Capgo Console versions prior to 12.28.2 allows an authenticated attacker to lock legitimate users out of authentication and onboarding flows by triggering account deletion while a device identifier is bound to the active session. The platform incorrectly persists the deletion state against the device identifier rather than the account, causing the affected browser or device to be redirected to an account-disabled page for roughly 30 days. No public exploit identified at time of analysis, but a vendor patch and GHSA advisory (GHSA-qmrm-qgwr-55jf) have been published following disclosure by VulnCheck.
Privilege escalation in Mattermost server (11.6.x, 11.5.x, and 10.11.x branches) allows a low-privileged user holding group-link permissions to promote themselves or other group members to team or channel administrator by setting the scheme_admin flag through group syncable link and patch API endpoints. The flaw stems from missing role-management authorization checks, and with a CVSS of 8.8 (network, low complexity, low privileges) it enables tenant-wide takeover of collaboration workspaces; no public exploit identified at time of analysis.
Privilege escalation in Mattermost collaboration platform allows authenticated users holding delegated user-management permissions to modify built-in system role permissions via the role patch API, bypassing a required system-level permission check. Affects Mattermost 10.11.x through 10.11.16, 11.5.x through 11.5.4, and 11.6.x through 11.6.1. No public exploit identified at time of analysis; EPSS is very low (0.03%) and the SSVC framework reports no observed exploitation.
Account takeover in Cap-go (Capgo) versions prior to 12.128.2 allows an attacker holding a temporary authenticated session to change the account's registered email address without re-authentication (no password or MFA prompt), then trigger a password reset to attacker-controlled inbox and seize the account. The flaw, reported by VulnCheck and tracked as a missing-authentication weakness (CWE-306), has a vendor patch but no public exploit identified at time of analysis.
Authorization bypass in ChromaDB's Python implementation lets authenticated tenants reach data outside their authorization boundary by invoking the V1 collection-level REST endpoints, which forward None as both the tenant and database identifiers to the authorization layer. The flaw, disclosed by HiddenLayer, exposes high-impact reads and writes to cross-tenant collections in this Python vector database. No public exploit identified at time of analysis, and the issue is not on the CISA KEV list.
ACL bypass in chisel (all versions ≤ 1.11.4) allows authenticated users to tunnel traffic to arbitrary destinations reachable from the server, completely circumventing --authfile address restrictions. The server enforces per-user allowlists only once during the initial SSH config handshake in server_handler.go, but never propagates the user context or ACL callback to the tunnel layer; subsequent SSH channels carrying actual traffic are accepted unconditionally regardless of their ExtraData destination. A full proof-of-concept exploit is published in GHSA-24fp-5v3p-rvpw, and a patch is available in version 1.11.5. No CISA KEV listing; EPSS is low at 0.02%, suggesting targeted rather than widespread opportunistic exploitation at time of analysis.
Cross-tenant authorization bypass in ChromaDB's SimpleRBACAuthorizationProvider (versions 0.5.0 and later) allows authenticated users to perform actions against tenants, databases, and collections they do not own. The provider verifies that a user holds a given permission but never validates the scope of that permission against the target resource, enabling lateral movement across multi-tenant deployments. No public exploit identified at time of analysis, but the flaw was disclosed by HiddenLayer and affects any Chroma deployment relying on the built-in RBAC provider for tenant isolation.
Unauthenticated cryptographic oracle exposure in the Aqara IAM/SSO gateway (gw-builder.aqara.com) lets remote attackers submit data for bidirectional AES encrypt/decrypt operations performed with the platform's signing key, with no authentication required. Because the same key that signs SSO tokens can be exercised as an oracle, an attacker can recover protected material and potentially forge or manipulate signed authentication tokens (tagged Authentication Bypass). Publicly available exploit code exists (SSVC exploitation=poc) and CISA's SSVC rates it automatable with total technical impact, though EPSS remains very low at 0.06%.
Missing authentication in the Aqara Board service (op-test.aqara.com) lets remote, unauthenticated attackers submit arbitrary MQTT command payloads that the exposed debug/test API relays to the platform's HiveMQ broker without any credential check. Publicly available proof-of-concept exploit code exists (SSVC: poc), and while EPSS is low (0.06%), runZero documents this as one link in a chain (CVE-2026-50082 through -50085) that together enables a fully unauthenticated remote takeover of affected devices. It is not listed in CISA KEV, so active exploitation in the wild is not confirmed.
Authentication bypass in the Aqara IAM/SSO Gateway (gw-builder.aqara.com) stems from a hardcoded OAuth client credential shipped in the identity backend, letting remote attackers impersonate a trusted OAuth client and subvert the single sign-on trust boundary. Discovered by runZero and tracked as EUVD-2026-36473, it carries a critical CVSS of 9.8 and a proof-of-concept is publicly available, though EPSS (0.03%) shows no evidence of widespread automated exploitation. On its own it compromises the SSO/authorization layer, but chained with CVE-2026-50082, CVE-2026-50084, and CVE-2026-50085 it enables a fully unauthenticated remote takeover of affected devices.
Cross-tenant data access in the ChromaDB Rust implementation (version 1.0.0 and later) lets any authenticated tenant user read, write, update, or delete data inside collections owned by other tenants because the server does not validate that the caller's tenant matches the target resource. The flaw, reported by HiddenLayer and tracked as CWE-639, breaks the tenant isolation boundary that multi-tenant ChromaDB deployments rely on, and no public exploit identified at time of analysis.
Cross-tenant data access in ChromaDB Python project version 0.4.17 and later allows any authenticated user to read, write, update, or delete data in collections belonging to other tenants, breaking the tenant isolation boundary that multi-tenant deployments rely on. The flaw, reported by HiddenLayer and tracked under CWE-639, carries a CVSS 4.0 score of 8.8 reflecting high confidentiality and integrity impact on both the vulnerable system and downstream tenants. No public exploit identified at time of analysis and not listed in CISA KEV.
Hard-coded MQTT broker credentials in Yarbo Android and iOS applications allow remote unauthenticated attackers to subscribe to and publish on the cloud MQTT brokers serving the entire global Yarbo robot fleet. Because the credentials are identical across all users and devices and trivially extractable via APK decompilation, anyone knowing a target robot's serial number can read its telemetry or send arbitrary commands. No public exploit identified at time of analysis, but the CVSS 4.0 base score of 9.3 and CISA ICS advisory reflect the systemic, fleet-wide nature of the exposure.
Authorization bypass in Yarbo's cloud MQTT infrastructure allows any authenticated client to subscribe to wildcard topics covering the entire global robot fleet and to publish commands to any robot using only its serial number, which is itself disclosed in the telemetry stream. The flaw affects both the Yarbo Android/iOS mobile application and the backing cloud MQTT broker, and no public exploit identified at time of analysis, but the design defect means a single compromised credential yields fleet-wide control.
Authentication bypass in Başbelen Group's Pause+ Mobile App versions 1.0.6 through 1.4.x allows remote attackers to defeat login protections by exhausting authentication attempts without lockout, per CWE-307. The CVSS 9.8 score and PR:N/UI:N vector indicate unauthenticated network-based exploitation against any user account, though no public exploit identified at time of analysis and the vulnerability is not currently listed in CISA KEV.
Route-rule middleware bypass in Nuxt 3.11.0-3.21.6 and 4.0.0-4.4.6 allows remote attackers to evade routeRules-defined protections (authentication, redirects, headers, prerender/SSR controls) by simply varying URL case, because vue-router matches paths case-insensitively while the routeRules matcher matched case-sensitively. The fix in 3.21.7 and 4.4.7 lowercases the path before matching. EPSS is 0.02% and no public exploit is identified at time of analysis, but the underlying class is trivially abused once an asymmetric rule is known.
Discord role hierarchy bypass in Quest Bot (open-source Discord moderation bot) prior to version 1.1.6 allows moderators to perform privileged actions against users ranked above them in the server role hierarchy. Any moderator holding the relevant Discord permission bit can ban, kick, timeout, untimeout, warn, or rename higher-ranked members so long as the bot itself outranks the target. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV.
Authorization bypass in Quest Bot Discord bot prior to version 1.1.6 lets low-privilege guild members invoke the purge and slowmode commands in channels where their channel-level permissions explicitly deny moderation. The bot only validates guild-wide permissions on the invoking member and ignores Discord's per-channel permission overrides, so a user excluded from moderating a specific channel can still delete messages and alter slowmode there. No public exploit identified at time of analysis, and the issue is patched in v1.1.6.
Hardcoded database credentials in IEI Integration Corp's iRM-IEI Remote Management (iRM-TSI410X platform) allow remote unauthenticated attackers to authenticate to the backend database with administrative privileges. No public exploit identified at time of analysis, but the CVSS 4.0 base score of 9.3 reflects trivial network-accessible exploitation with full confidentiality, integrity, and availability impact. The flaw is reported by TWCERT and tagged as an Authentication Bypass.
Information disclosure in IEI Integration Corp's iRM-IEI Remote Management (iRM-TSI410X) allows unauthenticated remote attackers to retrieve partial system configuration data by invoking a specific function that lacks authentication enforcement. The flaw is reported by TWCERT and carries a CVSS 4.0 base of 7.9, but no public exploit identified at time of analysis and the vulnerability is not listed in CISA KEV.
Information disclosure in Vivo PcSuite versions below 6.2.5 allows adjacent attackers within Bluetooth range to bypass an authentication mechanism in a specific function and obtain sensitive data without user interaction. The flaw is tracked as a missing-authentication weakness (CWE-306) reported directly by Vivo and carries a CVSS 4.0 score of 9.4, with no public exploit identified at time of analysis.
Command restriction bypass in the SSH service of Cellopoint CelloOS allows authenticated remote attackers to escape the restricted shell and execute arbitrary operating system commands beyond their authorized scope. The flaw is tracked as an Improper Access Control issue (CWE-1284) and was disclosed by Taiwan's TWCERT with a CVSS 4.0 score of 8.7. No public exploit identified at time of analysis, and the vulnerability is not listed in CISA KEV.
Improper access control in Ubiquiti UniFi OS allows network-adjacent attackers to make unauthorized configuration changes to UniFi Dream Machine, Cloud Gateway, and Express gateway devices under certain network configurations. The flaw, scored CVSS 8.1 with full CIA impact, requires no authentication (PR:N) but has high attack complexity (AC:H), and no public exploit identified at time of analysis. Disclosed via HackerOne and addressed in Ubiquiti Security Advisory Bulletin 065.
Privilege escalation in phpBB allows an authenticated administrator with limited rights to grant themselves permissions beyond their authorized scope through the Administration Control Panel (ACP), enabling elevation to full administrative control over the forum. The flaw stems from improper verification of access permissions when permissions are modified via the ACP, and no public exploit identified at time of analysis. With CVSS 7.2 (PR:H) and no KEV listing, this is a meaningful but not panic-level risk that primarily threatens multi-admin phpBB deployments where administrative duties are intentionally segmented.
Cross-tenant privilege escalation in WebPros WordPress Toolkit prior to 6.11.0 (as bundled with cPanel & WHM) allows an authenticated low-privilege account holder to inject arguments into the wp-toolkit CLI and execute commands in the context of another tenant on the same shared server. With a CVSS of 9.9 and scope change, a single compromised hosting account can pivot to siblings on the same host. No public exploit identified at time of analysis and the CVE is not listed in CISA KEV.
Account hijacking in phpBB is possible due to improper authentication checks in the OAuth implementation, affecting default installations even when OAuth is not configured or enabled. Remote unauthenticated attackers can gain unauthorized access to arbitrary accounts on the forum platform, with no public exploit identified at time of analysis despite the critical 9.8 CVSS score.
Origin validation failure in CyberArk's Idira Identity Browser Extension for Chrome, Firefox, and Edge (versions prior to 26.8.1) allows a remote attacker to abuse an authenticated user's browser session by luring them to a malicious page. Per CyberArk bulletin CA26-21, the extension's internal web-page verification routine fails to correctly enforce origin checks (CWE-346), enabling unauthorized application interaction in the victim's identity context. No public exploit identified at time of analysis, but the CVSS 4.0 base score of 8.4 reflects high confidentiality impact and subsequent-system impact via the identity SaaS the extension brokers.
Quick Facts
- Typical Severity
- CRITICAL
- Category
- auth
- Total CVEs
- 37455