Weakness (CWE)
CWE-287: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How to prevent it (1 mitigation)
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Architecture and Design
Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Source: MITRE CWE-287
3,158 results · Feed
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High 7.3
KusalkaSilva Learning-Management-System State-Changing Endpoints remove_announcements.php mysql_query missing 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 manipula…
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Critical 10.0
Netcore NR268 CGI Execution user_ok 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 ma…
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High 7.5
Improper authentication in Progress MarkLogic Server SAML processing
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…
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High 8.7CVE-2026-109372 Public exploit
ZITADEL 3.0.0 before 4.19.2 Account Takeover via SAML Identity-Provider Confusion
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 wi…
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High 8.1
Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Remember-Me Cookie
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 aft…
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High 8.1
Grav Login Plugin 2.7.0 before 3.9.9 2FA Bypass via Profile Update Form
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 pa…
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High 7.5
Improper OAuth token validation in Progress MarkLogic Server
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 unauthori…
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High 7.3
agno-agi agno auth.py get_authentication_dependency missing 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…
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Medium 6.8
Keycloak-services: keycloak-services: ciba confidential-only contract not enforced for public clients
A flaw was found in the Client-Initiated Backchannel Authentication CIBA implementation within the keycloak-services component of Keycloak. This component handles advanced authentication flows where a client initiates a login on behalf of a user. The issue oc…
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Medium 6.1
Improper authentication in Samsung Flow prior to version 4.9.22.4 allows adjacent attackers to access sensitive informa…
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High 8.2
AmoyLab Unla through 0.10.0 OAuth2 Authentication Bypass via /authorize
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 fro…
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High 8.8
Disable Users <= 1.0.5 - Disabled Account Authentication Bypass via XML-RPC and Application Passwords
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.
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Critical 9.8
Freeton WP <= 1.0.0 - Unauthenticated Account Takeover via 'secod' Parameter
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.
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Critical 9.8
Mindstien Quick Login <= 1.0 - Unauthenticated Administrator Account Takeover via 'mql_pass' Parameter
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 accoun…
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High 8.3
Studio-Saelix Sencho Login Endpoint login 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 …
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Critical 9.8
Wukong_HRM through commit 186115e Authentication Bypass via ParamAspect
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, s…
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High 7.3
AstronRPA through 1.1.6 Authentication Bypass via Arbitrary Bearer Token
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/r…
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High 8.1
WPO365 | SEAMLESS WORDPRESS + MICROSOFT INTEGRATION (WPO365 | LOGIN) <= 44.1 - Unauthenticated Authentication Bypass via OIDC Nonce Replay via id_token Nonce Verification
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_openidco…
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Critical 9.8
WPCOM Member <= 1.7.27 - Unauthenticated Authentication Bypass via 'uuid' and 'code' Parameters on Social-Login Callback
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…
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High 8.1
SMS Alert 4.0.0 - Unauthenticated Authentication Bypass via Login with OTP
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…
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Medium 5.3
Contest Gallery < 33.0.1 - Unauthenticated Email Verification Bypass via Brute-Forceable Registration PIN
The Contest Gallery WordPress plugin before 33.0.1 does not limit the number of attempts against its front-end registration email-verification step, which relies on a short numeric PIN, allowing unauthenticated attackers to brute-force the PIN and create and …
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Critical 9.8
Advanced IP Blocker <= 8.13.13 - Unauthenticated Authentication Bypass via Missing Step-1 Binding to 2FA Login Handler
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 equiva…
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High 8.1
Advanced Form Integration <= 2.9.0 - Unauthenticated Unverified Password Change to Authentication Bypass / Privilege Escalation via Contact Form 7 Submission to Ultimate Member Update Profile Field Action
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 th…
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High 7.5CVE-2026-62367 Public exploit
Vikunja: OIDC email-fallback account linking ignores email_verified, enabling local-account takeover
Vikunja is an open-source self-hosted task management platform. In versions 1.0.0 through 2.3.0, when an administrator enables the per-provider `emailfallback` option on an OpenID Connect provider, Vikunja links an SSO login to a pre-existing local (username+…
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High 8.1
pyload-ng: getUserData/get_userdata exposed at Perms.ANY allow any authenticated account to brute-force the administrator password
## Summary `Api.getUserData` (legacy) and `Api.get_userdata` are declared with `@permission(Perms.ANY)` and are reachable at `/api/getUserData` and `/api/get_userdata`. Because `Perms.ANY == 0` and pyLoad's permission check is a bitmask AND, that gate is a no…
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High 8.1
pyLoad has an authentication bypass in API key validation (check_apikey cache)
## Summary The API-key cache in `check_apikey()` allows an attacker to authenticate with a **forged API key** as long as the legitimate key for the same `key_id` has been used recently. On a cache hit, the API key **secret is never verified**, resulting in a …
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High 8.1
Pingvin Share X 0.19.0 before 1.22.0 Account Takeover via OAuth Email Linking
Pingvin Share X from 0.19.0 before 1.22.0 contains an improper authentication vulnerability that allows remote unauthenticated attackers to take over accounts by abusing automatic OAuth email linking in OAuthService.signUp(). Attackers can register a victim's…
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High 8.1
Nginx UI: Authentication bypass: password login does not enforce a passkey-only second factor (2FA bypass)
Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, POST /api/login checks EnabledOTP but does not require a WebAuthn assertion when EnabledPasskey is true and no TOTP secret is configured. A passkey-only account is therefore is…
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High 7.1
PHPNuxBill through 2025.3.20 CHAP Authentication Bypass via Password::chap_verify()
PHPNuxBill through 2025.3.20 contains an authentication bypass vulnerability in RADIUS CHAP verification because Password::chap_verify() returns true when the supplied response does not match. Attackers who know a valid customer or PPPoE username can log in t…
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High 8.1
Authentication bypass in FalkorDB Bolt endpoint via fail-open AUTH probe error handling
An improper authentication vulnerability in the is_authenticated function (src/bolt/bolt_api.c) in FalkorDB before 4.20.0 allows a remote unauthenticated attacker to execute graph queries without credentials through the Bolt endpoint. The function decides whe…
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High 8.7
Unauthenticated JSON API Authorization Bypass Vulnerability in TP-Link Tapo C325WB
TP-Link Tapo C325WB V2 contains an unauthenticated authorization bypass vulnerability in the HTTPS JSON API dispatcher on TCP port 443. An attacker on the adjacent network can append an onboarding-scoped object to a JSON request to bypass session verification…
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Critical 9.1
Security vulnerabilities have been found in IBM Verify Identity Access and IBM Security Verify Access
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow a remote attacker to bypass security restrictions due to improper authentication.
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Critical 9.1
Security vulnerabilities have been found in IBM Verify Identity Access and IBM Security Verify Access
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow a remote attacker to bypass authentication due to improper authentication.
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High 8.1
Security vulnerabilities have been found in IBM Verify Identity Access and IBM Security Verify Access
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow a remote authenticated attacker to bypass security restrictions due to improper authentication.
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Medium 4.3
EspoCRM before 10.0.6 Two-Factor Authentication Bypass on Unauthenticated Routes
EspoCRM before 10.0.6 contains an authentication bypass vulnerability that accepts a login stopped at the second factor on routes not requiring authentication. Attackers knowing a 2FA-enabled user's username and password can skip the second factor to read con…
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Critical 9.8
IBM DataPower Gateway Improper Authentication
IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote attacker to obtain administrative access due to failure to reject empty passwords during LDAP authenticatio…
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Critical 9.8
Ultimate Multisite < 2.17.0 - Unauthenticated Authentication Bypass via 'email_address' Parameter
The Ultimate Multisite WordPress plugin before 2.17.0 does not require authentication before a logged-out checkout is linked to, and logged in as, an existing WordPress account matching the submitted email address, and its duplicate-account check normalizes t…
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Medium 6.8
AsyncHttpClient CookieStore Silently Overrides Caller's Explicit Cookie Header via setHeader (Bypass of CVE-2024-53990 Fix)
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.1.0 until 3.0.14, the enabled-by-default cookie store replaces a Cookie header explicitly supplied through setHeader o…
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Medium 4.8
wger: API credentials remain valid after logout/password change
wger is a free, open-source workout and fitness manager. Versions prior to 2.6 have a vulnerability in the authentication/session lifecycle of `wger` where bearer-style API credentials remain valid after a user logs out and after a user changes their password…
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High 7.1
MISP: Forced TOTP Enrolment Bypassed via Non-Browser Request Types on otp_required Instances
On MISP instances configured to require TOTP enrolment (Security.otp_required), the enforcement of the mandatory two-factor authentication setup applied only to standard browser requests. An authenticated user who had not yet enrolled in TOTP could bypass the…