Improper Authentication
CWE-287
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
We track 1,836 vulnerabilities of this type. 100% are rated high or critical, and the average CVSS score is 8.7. 52 have been exploited in real attacks.
How this weakness is prevented
- Architecture and Design: Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Latest Improper Authentication vulnerabilities
- 7.4 High severity
better-auth: Improper Authentication
Better Auth from 1.5.0-beta.12 before 1.7.7 contains an authentication bypass vulnerability in the OAuth Proxy plugin that allows unauthenticated attackers to sign in as other users by forging encrypted profiles. When the proxy shares the global secret and coo
- 8.1 High severity
sso: Improper Authentication
Better Auth @better-auth/sso from 1.7.0-rc.2 before 1.7.3 contains an authentication bypass vulnerability that allows authenticated users to sign in as other users by registering a personal SSO provider. Attackers can copy a legitimate provider's OIDC issuer o
- 9.1 Critical severity
better-auth: Improper Authentication
Better Auth from 1.4.0-beta.18 before 1.7.7 contains an authentication bypass vulnerability that allows unauthenticated attackers to sign in as other users by reusing OAuth state values as Magic Link tokens. Attackers can start an OAuth sign-in with a victim's
- 8.1 High severity
FileRise: Improper Authentication
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.23.0, FileRise maps an authenticated OIDC identity to a local account using mutable preferred_username or email claims and does not require email
- 7.6 High severity
sentry: Improper Authentication
Sentry is an application monitoring and error tracking platform. From 26.5.0 until 26.7.2, the SAML SSO identity-linking flow allows an attacker who controls a SAML identity provider to socially engineer an authenticated user into opening a malicious URL, link
- 8.8 High severity
PgBouncer: Improper Authentication
Improper authentication in PgBouncer 1.17.0 through 1.26.0 allows a remote attacker who knows the password of a user listed in auth_file to log in as any other user that authenticates using SCRAM, including PgBouncer admin users and backend superusers. A secon
- 9.8 Critical severity
Junos OS: Improper Authentication
An Improper Authentication vulnerability in the J-Web management interface and its NETCONF session handling of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to obtain root-level device configuration access and take o
- 9.8 Critical severity
Junos OS: Improper Authentication
An Improper Authentication vulnerability in J-Web of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to bypass J-Web authentication and execute CGI content with elevated privileges via a crafted HTTP request.
- 9.8 Critical severity
Junos OS: Improper Authentication
An Improper Authentication vulnerability in the J-Web web management component of Juniper Networks Junos OS allows an unauthenticated remote attacker to execute arbitrary Junos commands with root privileges via the exposed J-Web web interface.
- 9.1 Critical severity
zulip: Improper Authentication
Zulip is an open-source team collaboration tool. In Zulip Server versions through 12.1, GenericOpenIdConnectBackend matches the identity provider email claim to an active account's delivery_email without rejecting an explicitly false email_verified claim. If a
- 7.6 High severity
Prowler: Improper Authentication
Improper Authentication in the social account linking path of the Prowler API in Prowler from 5.4.0 before 5.35.0 allows a remote unauthenticated attacker to obtain persistent access to the account of a user who has not yet registered, because ProwlerSocialAcc
- 7.4 High severity
Appointment Booking Plugin – LatePoint |…: Improper Authentication
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Authentication Bypass in versions up to, and including, 5.7.2 via the OsCustomerHelper::create_wp_user_for_customer() helper reached from the
- 8.1 High severity
ikaros: Improper Authentication
Ikaros 1.2.0 through 1.2.5 contains an authentication bypass vulnerability that allows attackers with a valid password to skip TOTP verification by reusing the login temp token. Attackers can present the temp token from the jwt/apply endpoint as a bearer JWT,
- 9.8 Critical severity
mcp-context-forge: Improper Authentication
MCP Context Forge is an MCP gateway and administrative platform. Prior to 1.0.2, mcpgateway/config.py and .env.example ship a known JWT_SECRET_KEY, while verify_jwt_token() accepts HS256 tokens signed with that key and get_current_user() creates a platform adm
- 8.0 High severity
WebSphere Application Server: Improper Authentication
IBM WebSphere Application Server 8.5, and 9.0 could allow an authenticated attacker to bypass authorization leading to administrative impersonation across the cell.
- 8.1 High severity
WebSphere Application Server: Improper Authentication
IBM WebSphere Application Server 8.5, and 9.0 could allow a remote attacker to bypass authentication by exploiting a flaw in the CSIv2 inbound propagation handler.
- 7.3 High severity
Restaurant-Management-System: Improper Authentication
A vulnerability has been found in AdithyaYelloju Restaurant-Management-System up to 7f0e7e84255e8fcfd488e83f8f91451bbbff6b9c. This vulnerability affects unknown code of the file User/login.php of the component Login Form. Such manipulation of the argument emai
- 7.3 High severity
Human Resource Management System: Improper Authentication
A vulnerability was found in SourceCodester Human Resource Management System 1.0. Affected by this vulnerability is the function session_start of the file controller/employee.php of the component Employee Endpoint. The manipulation of the argument role/pfimg/E
- 7.1 High severity
nginx-ui: Improper Authentication
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, GetCasdoorUri uses the configured Casdoor application name as a constant OAuth state value and CasdoorCallback does not compare the submitted state with a value bound to the initiating
- 8.8 High severity
nginx-ui: Improper Authentication
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, POST /api/otp_enroll and POST /api/finish_passkey_register are registered outside RequireSecureSession and accept a normal authenticated session without verifying the current password.
- 7.3 High severity
Learning-Management-System: Improper Authentication
A vulnerability was detected in KusalkaSilva Learning-Management-System up to ffeb873f8803f1e9664384ff75000c7da45466d2. This impacts the function mysql_query of the file remove_announcements.php of the component State-Changing Endpoints. Performing a manipulat
- 7.5 High severity
MarkLogic Server: Improper Authentication
Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 contain an improper authentication vulnerability in SAML processing. In deployments that use SAML authentication, an unauthenticated remote attacker could cause the affected
- 7.5 High severity
MarkLogic Server: Improper Authentication
Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 contain an authentication validation weakness that could allow an attacker to use a token that should not be accepted by the affected server, which could result in unauthoriz
- 8.7 High severity
zitadel: Improper Authentication
ZITADEL 4.x before 4.19.2 and 3.x through 3.4.15 contains an authentication bypass in the SAML identity-provider intent callback, which verifies the assertion signature using the provider named in the request URL but resolves the user from the login intent wit
- 8.1 High severity
grav-plugin-login: Improper Authentication
Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass vulnerability that allows attackers with a valid password to skip two-factor authentication through remember-me cookie restoration. Attackers can obtain a persistent remember-me cookie afte
- 8.1 High severity
grav-plugin-login: Improper Authentication
Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass in processUserProfile(), which checks that the session user exists but not that a pending front-end 2FA session is fully authorized. Attackers with a victim's password who can publish a pag
- 10.0 Critical severity
NR268: Improper Authentication
A vulnerability was determined in Netcore NR268 1.7.121109. Affected is the function user_ok of the component CGI Execution. This manipulation causes improper authentication. The attack can be initiated remotely. The exploit has been publicly disclosed and may
- 7.3 High severity
agno: Improper Authentication
A vulnerability was identified in agno-agi agno up to 2.7.3/3.0.6. This affects the function get_authentication_dependency of the file auth.py. Such manipulation of the argument security_key leads to missing authentication. The attack may be launched remotely.
- 8.2 High severity
Unla: Improper Authentication
AmoyLab Unla through 0.10.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain valid access tokens because the OAuth2 server never authenticates a resource owner. Attackers can register a client, request a code from
- 8.8 High severity
Disable Users: Improper Authentication
The Disable Users WordPress plugin through 1.0.5 does not enforce its account-disabling control on all authentication paths, allowing the holder of an account an administrator has disabled to continue authenticating with the account's full privileges.
- 9.8 Critical severity
Freeton WP: Improper Authentication
The Freeton WP WordPress plugin through 1.0.0 does not correctly validate the activation code when authenticating a user, allowing unauthenticated attackers to log in as any user whose email address they know, including administrators.
- 9.8 Critical severity
Mindstien Quick Login: Improper Authentication
The Mindstien Quick Login WordPress plugin through 1.0 does not correctly validate a value supplied in the request against the visitor's own session before authenticating them, allowing unauthenticated attackers to obtain a session as the administrator account
- 8.3 High severity
Sencho: Improper Authentication
A vulnerability was found in Studio-Saelix Sencho up to 0.94.1. This affects an unknown part of the file /api/auth/login of the component Login Endpoint. Performing a manipulation of the argument X-Forwarded-For results in improper authentication. The attack i
- 9.8 Critical severity
Wukong_HRM: Improper Authentication
Wukong_HRM through commit 186115e contains an authentication bypass vulnerability in ParamAspect that allows unauthenticated attackers to call every HRM API endpoint by omitting the AUTH-TOKEN header. Attackers gain HR administrator access to read payslips, sa
- 7.3 High severity
astron-rpa: Improper Authentication
AstronRPA through 1.1.6 contains an authentication bypass vulnerability in the OpenResty gateway's auth_handler.lua that accepts any Bearer token without validation. Unauthenticated attackers can send arbitrary Bearer values to reach /api/resource/ and /api/rp
- 9.8 Critical severity
WPCOM Member: Improper Authentication
The WPCOM Member plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.7.27 via the `uuid` and `code` parameters of the social-login callback handler registered on the `init` hook. The vulnerability exists because
- 8.1 High severity
WPO365 | SEAMLESS WORDPRESS + MICROSOFT…: Improper Authentication
The WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN) plugin for WordPress is vulnerable to Authentication Bypass via OIDC Nonce Replay in all versions up to, and including, 44.1 This is due to `Id_Token_Service_Deprecated::process_openidcon
- 8.1 High severity
SMS Alert: Improper Authentication
The SMS Alert WordPress plugin before 4.0.1 does not verify that the account being logged in is the one the verified one-time code belongs to, allowing unauthenticated attackers to sign in as any user with a stored phone number, including an administrator, by
- 8.1 High severity
Advanced Form Integration — Connect Forms to…: Improper Authentication
The Advanced Form Integration — Connect Forms to 300+ Apps plugin for WordPress is vulnerable to Authentication Bypass via Unverified Password Change in all versions up to, and including, 2.9.0 The `adfoin_ultimatememberac_send_data` function, which powers the
- 9.8 Critical severity
Advanced IP Blocker: Improper Authentication
The Advanced IP Blocker plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 8.13.13 The vulnerability exists because `handle_login_action()` performs no server-side check — via transient, session marker, or equival