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 (7883)
Missing Authorization vulnerability in WC Product Table WooCommerce Product Table Lite allows Exploiting Incorrectly Configured Access Control Security Levels.8.7. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Missing Authorization vulnerability in Speedcomp Linet ERP-Woocommerce Integration allows Exploiting Incorrectly Configured Access Control Security Levels.5.7. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Missing Authorization vulnerability in NinjaTeam GDPR CCPA Compliance Support allows Exploiting Incorrectly Configured Access Control Security Levels.7.1. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Missing Authorization vulnerability in JS Morisset JSM Show Post Metadata allows Exploiting Incorrectly Configured Access Control Security Levels.6.0. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Missing Authorization vulnerability in Patreon Patreon WordPress allows Exploiting Incorrectly Configured Access Control Security Levels.9.1. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Missing Authorization vulnerability in Code for Recovery 12 Step Meeting List allows Exploiting Incorrectly Configured Access Control Security Levels.16.5. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Missing Authorization vulnerability in Epsiloncool WP Fast Total Search allows Exploiting Incorrectly Configured Access Control Security Levels.78.258. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
In some circumstances, debug artifacts uploaded by the CodeQL Action after a failed code scanning workflow run may contain the environment variables from the workflow run, including any secrets that. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability classified as critical was found in JoeyBling bootplus up to 247d5f6c209be1a5cf10cd0fa18e1d8cc63cf55d. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Rated medium severity (CVSS 5.7), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Missing Authorization vulnerability in theDotstore Product Size Charts Plugin for WooCommerce.4.5. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
The Jobify - Job Board WordPress Theme for WordPress is vulnerable to unauthorized access and modification of data due to a missing capability check on the 'download_image_via_ai' and. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
IBM Cognos Dashboards 4.0.7 and 5.0.0 on Cloud Pak for Data could allow a remote attacker to perform unauthorized actions due to dependency confusion. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The Spexo Addons for Elementor - Free Elementor Addons, Widgets and Templates plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. This Missing Authorization vulnerability could allow attackers to access resources or perform actions without proper authorization checks.
A SQL Injection vulnerability exists in the login form of Online Food Ordering System v1.0. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
RestrictedPython is a tool that helps to define a subset of the Python language which allows to provide a program input into a trusted environment. Rated high severity (CVSS 7.9), this vulnerability is remotely exploitable. No vendor patch available.
A vulnerability in Xerox Workplace Suite arises from flawed token generation and the use of hard-coded keys. Rated high severity (CVSS 7.6), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A vulnerability found in Xerox Workplace Suite allows arbitrary file read, upload, and deletion on the server through crafted header manipulation. Rated high severity (CVSS 7.6), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A flaw was found in the Open Virtual Network (OVN). Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
In Xerox Workplace Suite, an API restricted to specific hosts can be bypassed by manipulating the Host header. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The cloud service used by ECOVACS robot lawnmowers and vacuums allows authenticated attackers to bypass the PIN entry required to access the live video feed. Rated medium severity (CVSS 6.0), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
ECOVACS robot lawnmowers and vacuums use a deterministic root password generated based on model and serial number. Rated high severity (CVSS 7.0), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
It has been found that the Beta10 software does not provide for proper authorisation control in multiple areas of the application. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The Variation Swatches for WooCommerce plugin, in all versions starting at 1.0.8 up until 1.3.2, contains a vulnerability due to improper nonce verification in its settings reset functionality. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Request Forgery (CSRF) vulnerability could allow attackers to trick authenticated users into performing unintended actions.
A file handling command vulnerability in certain versions of Armoury Crate may result in arbitrary file deletion. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
BigFix Patch Download Plug-ins are affected by an insecure package which is susceptible to XML injection attacks. Rated low severity (CVSS 2.5). No vendor patch available.
A missing permission check in Jenkins Azure Service Fabric Plugin 1.6 and earlier allows attackers with Overall/Read permission to enumerate credentials IDs of Azure credentials stored in Jenkins. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Jenkins Folder-based Authorization Strategy Plugin 217.vd5b_18537403e and earlier does not verify that permissions configured to be granted are enabled, potentially allowing users formerly granted. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Jenkins Eiffel Broadcaster Plugin 2.8.0 through 2.10.2 (both inclusive) uses the credential ID as the cache key during signing operations, allowing attackers able to create a credential with the same. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An incorrect permission check in Jenkins GitLab Plugin 1.9.6 and earlier allows attackers with global Item/Configure permission (while lacking Item/Configure permission on any particular job) to. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
In GRAU DATA Blocky before 3.1, Blocky-Gui has a Client-Side Enforcement of Server-Side Security vulnerability. Rated medium severity (CVSS 6.4). No vendor patch available.
Missing Authorization vulnerability in Eugen Bobrowski Debug Tool allows Exploiting Incorrectly Configured Access Control Security Levels.2. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Missing Authorization vulnerability in Team118GROUP Team 118GROUP Agent allows Exploiting Incorrectly Configured Access Control Security Levels.6.0. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Missing Authorization vulnerability in NotFound Database Sync allows Exploiting Incorrectly Configured Access Control Security Levels.5.1. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
A flaw was found in Keycloak. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
The WP Hotel Booking plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the hotel_booking_load_order_user AJAX action in all versions up to, and. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. This Missing Authorization vulnerability could allow attackers to access resources or perform actions without proper authorization checks.
The AI Power: Complete AI Pack plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the wpaicg_save_image_media function in all versions up to, and. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, low attack complexity. This Missing Authorization vulnerability could allow attackers to access resources or perform actions without proper authorization checks.
The AdForest theme for WordPress is vulnerable to authentication bypass in all versions up to, and including, 5.1.8. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
The WPBot Pro Wordpress Chatbot plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'qc_wp_latest_update_check_pro' function in all. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
With the aid of the diagnostics_channel utility, an event can be hooked into whenever a worker thread is created. Rated high severity (CVSS 7.7), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Life Sciences Argus Safety product of Oracle Health Sciences Applications (component: Login). Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Web Services). Rated medium severity (CVSS 6.6), this vulnerability is remotely exploitable. No vendor patch available.
Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Access and Security). Rated medium severity (CVSS 4.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Agile PLM Framework product of Oracle Supply Chain (component: Install). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Agile PLM Framework product of Oracle Supply Chain (component: Agile Integration Services). Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the PeopleSoft Enterprise CC Common Application Objects product of Oracle PeopleSoft (component: Run Control Management). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the PeopleSoft Enterprise CC Common Application Objects product of Oracle PeopleSoft (component: Run Control Management). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the PeopleSoft Enterprise SCM Purchasing product of Oracle PeopleSoft (component: Purchasing). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Agile PLM Framework product of Oracle Supply Chain (component: SDK-Software Development Kit). Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Rated medium severity (CVSS 5.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Primavera P6 Enterprise Project Portfolio Management product of Oracle Construction and Engineering (component: Web Access). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in Oracle Application Express (component: General). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Agile PLM Framework product of Oracle Supply Chain (component: Agile Integration Services). Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Rated medium severity (CVSS 5.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Communications Order and Service Management product of Oracle Communications Applications (component: Security). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Java VM component of Oracle Database Server. Rated medium severity (CVSS 4.2), this vulnerability is remotely exploitable. No vendor patch available.
Vulnerability in the JD Edwards EnterpriseOne Orchestrator product of Oracle JD Edwards (component: E1 IOT Orchestrator Security). Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Hospitality OPERA 5 product of Oracle Hospitality Applications (component: Opera Servlet). Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Rated low severity (CVSS 3.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Communications Order and Service Management product of Oracle Communications Applications (component: Security). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Workflow product of Oracle E-Business Suite (component: Admin Screens and Grants UI). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the PeopleSoft Enterprise FIN eSettlements product of Oracle PeopleSoft (component: eSettlements). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the PeopleSoft Enterprise FIN Cash Management product of Oracle PeopleSoft (component: Cash Management). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Design Tools SEC). Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Monitoring and Diagnostics SEC). Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Options). Rated low severity (CVSS 1.8). No vendor patch available.
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Rated medium severity (CVSS 4.4), this vulnerability is remotely exploitable. No vendor patch available.
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Web Runtime SEC). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Customer Care product of Oracle E-Business Suite (component: Service Requests). Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Web Runtime SEC). Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Web Runtime SEC). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Web Runtime SEC). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Web Runtime SEC). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Project Foundation product of Oracle E-Business Suite (component: Technology Foundation). Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Hotspot). Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Vulnerability in the Oracle HTTP Server product of Oracle Fusion Middleware (component: Core). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
https://www.gnu.org/software/binutils/ nm >=2.43 is affected by: Incorrect Access Control. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Business Logic Infra SEC). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed signature spoofing for unauthorized internal users. Rated high severity (CVSS 7.6), this vulnerability is remotely exploitable. Epss exploitation probability 11.8% and no vendor patch available.
An issue in RAR Extractor - Unarchiver Free and Pro v.6.4.0 allows local attackers to inject arbitrary code potentially leading to remote control and unauthorized access to sensitive user data via. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.
An issue in System.Linq.Dynamic.Core before 1.6.0 allows remote access to properties on reflection types and static properties/fields. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
In JetBrains TeamCity before 2024.12.1 decryption of connection secrets without proper permissions was possible via Test Connection endpoint. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
In JetBrains TeamCity before 2024.12.1 improper access control allowed to see Projects’ names in the agent pool. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Quick Facts
- Typical Severity
- CRITICAL
- Category
- auth
- Total CVEs
- 7883