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 8.1
phpMyFAQ 3.2.0-alpha before 4.1.9 and 4.2.0-alpha before 4.2.0-beta TOTP 2FA Bypass via SSO Callbacks
phpMyFAQ 3.2.0-alpha before 4.1.9 and 4.2.0-alpha before 4.2.0-beta contains an authentication bypass vulnerability that allows IdP-authenticated users to skip TOTP two-factor authentication through the Keycloak and Entra ID SSO callbacks. Attackers holding a…
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Critical 9.1
Appointment Booking Plugin <= 5.7.4 - Unauthenticated Authentication Bypass via Race Condition on OTP Attempts Counter
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Authentication Bypass via Race Condition in all versions up to, and including, 5.7.4. This is due to a non-atomic read-modify-write on the O…
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Critical 9.8
Apache Kylin: Unauthenticated Metadata Broadcast (inside in-house network)
Authentication bypass within in-house network in Apache Kylin. Impact most to the kylin services that are directly exposed to public network, which is not common. In-house kylin deployments are mostly not impacted. This issue affects Apache Kylin: from 4.0.4 …
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Critical 9.8
Apache Kylin: Unauthenticated Metastore Cleanup
Improper Authentication vulnerability in Apache Kylin. Unauthenticated user may access to system cleanup actions. Impact most to the kylin services that are directly exposed to public network, which is not common. In-house kylin deployments are mostly not imp…
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Medium 4.3
IBM i is Affected By An Improper Authentication Vulnerability in SST / DST
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to bypass security restrictions due to improper authentication.
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High 8.1
bbs-go through 4.4.6 Account Takeover via Google One Tap Login
bbs-go through 4.4.6 contains an authentication bypass vulnerability in the /api/login/google_one_tap endpoint that allows remote attackers to log in as other users by submitting Google ID tokens issued to any OAuth client. Attackers operating their own Googl…
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High 8.1
Vulnity Security <= 1.4.3 - Unauthenticated Authentication Bypass to Administrator via Exposed Pairing Credentials
The Vulnity Security plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 1.4.3 This is due to insufficient protection of the delegated-login pairing credential file on Nginx-based installations, where the plugin's…
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High 7.4
OTP Login & Register Woocommerce < 2.7.3 - Unauthenticated Account Takeover via OTP Brute Force
The OTP Login & Register Woocommerce WordPress plugin before 2.7.3 does not adequately limit one-time-password verification attempts, because the attempt limit is tracked against a value the client itself supplies and can change freely, allowing an unauthenti…
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Medium 4.8
Salon Booking System < 10.31.9 - Unauthenticated Salon REST API Access via Predictable Access-Token
The Salon Booking System WordPress plugin before 10.31.9 does not generate its booking-API access tokens from a secure random source, instead deriving them from a value hardcoded in the Salon Booking System WordPress plugin before 10.31.9 and the second at wh…
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High 8.1
miniOrange OTP Login, Verification and SMS Notifications <= 5.5.8 - Unauthenticated Authentication Bypass via Delay OTP Grace State
The miniOrange OTP Login, Verification and SMS Notifications plugin for WordPress is vulnerable to Authentication Bypass in versions up to, and including, 5.5.8 via the `mo_by_pass_login()` function. This is due to `mo_delay_otp_process()` short-circuiting th…
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High 8.2
EnergizeLab Eilik Unauthenticated Device-Token Issuance for Arbitrary Serial Numbers
The EnergizeLab Eilik NestJS auth service issues device tokens for arbitrary robot serial numbers without authentication. An unauthenticated remote attacker can obtain a valid device token for any serial number and act as that device against the cloud service…
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Medium 5.3
ZoneMinder failed token handling bypasses web authentication
ZoneMinder is a free, open source closed-circuit television software application. In versions 1.34.0 through 1.36.38, the web interface mishandles failed token authentication in web/includes/auth.php. validateToken() returns false when a token is malformed or…
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Medium 6.1
Scoold: Forged JWT Accepted as Admin API Token Allowing Unauthorized Access to Sensitive Configuration and Logs
Scoold is a Q&A and a knowledge sharing platform for teams. Prior to 1.69.1, checkApiAuth() in src/main/java/com/erudika/scoold/utils/ScooldUtils.java accepts a JWT signed with app_secret_key or para_secret_key for /api/config and /api/stats without requiring…
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Medium 5.9
authd: Account takeover via username fallback in identity matching after IdP email reassignment
In authd before 0.7.1, the user identity matching in UpdateUser (internal/users/manager.go) resolves an incoming login by the broker-scoped provider ID, but falls back to matching the username when the provider ID does not belong to any known user, and does n…
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High 8.3
Unitronics - CWE-287: Improper Authentication
: Improper Authentication vulnerability in Unitronics Unitronics UniStream Pro/UniLogic. This issue affects Unitronics UniStream Pro/UniLogic: Unitronics UniStream Pro versions only (B10 / C10) – UniLogic versions prior to 1.41.329.
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High 7.4
Better Auth 1.5.0-beta.12 before 1.7.7 Authentication Bypass via OAuth Proxy
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 co…
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High 8.1
Better Auth @better-auth/sso before 1.7.3 Authentication Bypass via Personal SSO Providers
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 …
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Critical 9.1
Better Auth 1.4.0-beta.18 before 1.7.7 Authentication Bypass via Magic Link
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'…
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High 8.1
FileRise OIDC login can bind an attacker identity to an existing local account
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 emai…
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Medium 6.4
FileRise: TOTP codes are not single-use — valid 6-digit code can be replayed within its window (capture-replay)
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.23.0, FileRise verifies that a TOTP code is valid for the accepted time window but does not record that the same account and time step already s…
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Medium 5.4
FileRise: Login Method Restriction Bypass via Direct API Access
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.21.0, FileRise enforces disableFormLogin, disableBasicAuth, and disableOIDCLogin in the client interface but not consistently in the correspondi…
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Medium 6.5
cemtan sar2html sar2html.py deleteAll missing authentication
A security vulnerability has been detected in cemtan sar2html 4.0.0. This affects the function deleteHost/deleteRange/deleteAll of the file sar2html.py. Such manipulation leads to missing authentication. The attack may be performed from remote. The exploit ha…
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High 7.6
Sentry: Improper authentication on SAML SSO process allows user identity linking
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, lin…
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Medium 5.9CVE-2026-109506 Public exploit
Improper Authentication in Multiple TP-Link WiFi Repeaters
Multiple TP-Link Wi-Fi range extenders use a custom, reversible XOR-and-dictionary transformation in the HTTP web-management login flow. An unauthenticated attacker on the same local network who can capture the network traffic associated with legitimate admin…
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High 8.8
Authentication bypass via second StartupMessage during SCRAM authentication in PgBouncer
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 seco…
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Critical 9.8
Junos OS and Junos OS Evolved: Unauthenticated network access causes full device takeover when J-Web is enabled
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 …
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Critical 9.8
Junos OS and Junos OS Evolved: J-Web permits pre-authentication CGI execution
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.
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Critical 9.8
Junos OS: Unauthorized root command execution when J-Web is enabled
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.
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High 7.6
Account pre-hijacking in the Prowler API through email based social account linking without verification
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 ProwlerSocialAc…
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Critical 9.1
Zulip: OpenID Connect authentication ignores the email_verified claim
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 …
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High 7.4
Appointment Booking Plugin <= 5.7.2 - Unauthenticated Authentication Bypass to Customer Account Takeover via Insufficient Verification in create_wp_user_for_customer() username_exists Fallback
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 th…
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Medium 5.3
Asaas Gateway for WooCommerce < 2.7.8 - Unauthenticated Order Payment Bypass via Webhook
The Asaas Gateway for WooCommerce WordPress plugin before 2.7.8 does not properly authenticate its payment webhook, accepting an empty access token in its default configuration and not verifying that the confirmed payment corresponds to the order it marks pai…
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High 8.1
Ikaros 1.2.0 through 1.2.5 TOTP Authentication Bypass via Temp Token
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,…
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Critical 9.8
MCP Context Forge: Hardcoded default JWT_SECRET_KEY shipped in source and .env.example enables pre-authentication platform admin token forgery
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 ad…
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High 8.1
IBM WebSphere Application Server is affected by a bypass authentication vulnerability
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.
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High 8.0
IBM WebSphere Application Server is affected by an authorization bypass
IBM WebSphere Application Server 8.5, and 9.0 could allow an authenticated attacker to bypass authorization leading to administrative impersonation across the cell.
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High 7.3
AdithyaYelloju Restaurant-Management-System Login Form login.php 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 ema…
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High 7.3
SourceCodester Human Resource Management System Employee Endpoint employee.php session_start 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/…
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High 7.1
Nginx UI: Casdoor SSO callback uses a constant `state` parameter (login CSRF)
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…
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High 8.8
Nginx UI: TOTP / passkey enrolment requires no re-authentication, enabling persistent account takeover
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.…