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
- 9.8 Critical severity
Oracle Identity Manager: Improper Authentication
Vulnerability in the Oracle Identity Manager product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTT
- 9.8 Critical severity
Oracle WebLogic Server: Improper Authentication
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with
- 9.8 Critical severity
Oracle WebLogic Server: Improper Authentication
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with
- 9.8 Critical severity
Oracle WebLogic Server: Improper Authentication
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with
- 7.4 High severity
meta-ads-mcp: Improper Authentication
Meta Ads MCP is a Model Context Protocol (MCP) server that lets AI assistants run Meta Ads. Prior to version 1.0.115, AuthInjectionMiddleware in meta_ads_mcp/core/http_auth_integration.py rejects HTTP MCP requests only when both auth_token and pipeboard_token
- 9.1 Critical severity
motioneye: Plaintext Storage of a Password
motionEye (mEye) is an online interface for a piece of software called "motion," which is a video surveillance program with motion detection. Prior to 0.44.0, motionEye accepts the client-controlled meye_username and meye_password_hash cookies as authenticatio
- 9.8 Critical severity
PraisonAI: Improper Authentication
PraisonAI is a multi-agent teams system. Prior to 0.1.6, praisonai_platform/services/auth_service.py falls back to the public dev-secret-change-me HS256 signing key when PLATFORM_JWT_SECRET is unset, while the startup and token-issuance guards are disabled bec
- 8.2 High severity
PraisonAI: Improper Authentication
PraisonAI is a multi-agent teams system. From 1.5.1 until 1.7.2, MCPSecurity.evaluatePolicy() in src/praisonai-ts/src/mcp/security.ts invokes the configured credential validator only when AuthMethod is api-key or bearer. Basic and OAuth policies accept any non
- 7.1 High severity
kimai: Improper Authentication
Kimai is an open-source time tracking application. Prior to 2.59.0, the KIMAI_SESSION cookie issued after password verification but before TOTP completion is accepted by every /api route because config/packages/security.yaml protects the API with IS_AUTHENTICA
- 7.6 High severity
OpenAM: Improper Authentication
Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the private_key_jwt client authentication path uses ClientJwksResolverCache without reliably binding a cached jwks_uri resolver and verified assertion to the expected clientID i
- 7.3 High severity
Blood Donor Management System: Improper Authentication
A vulnerability was identified in PHPGurukul Blood Donor Management System 1.0. Affected is the function __construct of the file /application/controllers/admin/Dashboard.php of the component Admin Controllers. The manipulation leads to improper authentication.
- 7.5 High severity
iOS and iPadOS: Improper Authentication
An authorization issue was addressed with improved state management. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27. An app may be able to fingerprint the device.
- 7.5 High severity
iOS and iPadOS: Improper Authentication
A privacy issue was addressed with improved handling of identifiers. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. An app may be able to identify a user across reinstalls.
- 7.5 High severity
macOS: Improper Authentication
The issue was addressed with improved authentication. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.
- 7.1 High severity
iOS and iPadOS: Improper Authentication
An authentication issue was addressed with improved state management. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An app may be able to use the Sign In With Apple authentication flow to
- 8.2 High severity
PraisonAI: Improper Authentication
PraisonAI is a multi-agent teams system. Prior to 4.6.62, setting PRAISONAI_CALL_AUTH to disabled makes verify_token accept requests to /api/v1/agents/{id}/invoke without CALL_SERVER_TOKEN authentication. Deployments that use the application's advertised opt-o
- 9.3 Critical severity
The LdapAuth and LinOTPAuth authentication plugins in MISP contain an authentication bypass…
The LdapAuth and LinOTPAuth authentication plugins in MISP contain an authentication bypass vulnerability. Both LdapAuthenticate and LinOTPAuthenticate replace CakePHP's FormAuthenticate class but fail to replicate its _checkFields() input validation guard. As
- 7.3 High severity
HexStrike AI: Improper Authentication
A vulnerability was determined in 0x4m4 HexStrike AI up to d689933ff579d839c676c82b231f8e98326c5f04. The impacted element is an unknown function of the file hexstrike_server.py of the component API Command Endpoint. This manipulation causes missing authenticat
- 7.3 High severity
graphiti: Improper Authentication
A vulnerability was found in getzep graphiti up to 0.30.2. Affected is an unknown function of the file server/graph_service/main.py of the component REST API. The manipulation results in improper authentication. The attack can be launched remotely. The pull re
- 7.3 High severity
Cheshire Cat AI: Improper Authentication
A vulnerability has been found in cheshire-cat-ai Cheshire Cat AI up to 1.9.2. This affects the function _authorize_http_key of the file core/cat/factory/custom_auth_handler.py. The manipulation of the argument user_id leads to missing authentication. The atta
- 7.3 High severity
Tourism-Management-System: Improper Authentication
A security flaw has been discovered in jaychouchannel Tourism-Management-System up to 229956e20dbd4a80eeff14535e44d3099502af09. The impacted element is an unknown function of the component Update Endpoint. Performing a manipulation results in missing authentic
- 7.3 High severity
WARP-Clash-API: Improper Authentication
A vulnerability has been found in vvbbnn00 WARP-Clash-API up to c7bf2360073959861219b422e51ae86411051b46. The impacted element is the function authorized. The manipulation of the argument SECRET_KEY leads to missing authentication. The attack can be initiated
- 7.5 High severity
Really Simple Security: Improper Authentication
The Really Simple Security WordPress plugin before 9.8.1 does not prevent an unauthenticated request from resetting an account's completed email two-factor enrolment, allowing an attacker who already knows the account's password to bypass the second factor and
- 9.8 Critical severity
Frontegg SAML SSO: Improper Authentication
The Frontegg SAML SSO WordPress plugin through 1.0.1 does not verify the signature or issuer of SAML authentication responses before establishing a session, allowing unauthenticated attackers to log in as any user, including administrators, as well as to creat
- 9.2 Critical severity
server: Improper Authentication
Laci Synchroni is a decentralized mod and appearance sync server and plugin for Dalamud. Versions of the backend prior to 1.2.3 have an improper authentication vulnerability in the application's OAuth2 login flow. The application relies on client-side state by
- 8.8 High severity
headroom: Improper Authentication
Headroom compresses data before the data reaches a large language model. Prior to version 0.35.0, the Headroom WebSocket server does not validate the `Origin` header of incoming client WebSocket requests before forwarding the request to the upstream server, al
- 9.8 Critical severity
advanced-customized-prompts: Improper Authentication
The advanced-customized-prompts WordPress plugin through 1.0.1 does not verify the password before issuing an authenticated session for a supplied email address in an unauthenticated action, allowing unauthenticated attackers to log in as any registered user,
- 9.8 Critical severity
teddy-bear-customize-addon: Improper Authentication
The teddy-bear-customize-addon WordPress plugin through 1.0.5 does not verify a user's password before authenticating them, allowing unauthenticated attackers to log in as any registered user, including administrators, by supplying only that user's email addre
- 9.6 Critical severity
DataStage on Cloud Pak for Data: Improper Authentication
IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker to obtain sensitive information and bypass security restrictions due to improper authentication.
- 9.8 Critical severity
rclone: Improper Authentication
rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, rclone serve s3 configured with --auth-proxy but without --auth-key allows authPairMiddleware to register any client-chosen accessKey
- 9.1 Critical severity
traefik: Improper Authentication
Traefik is an open source HTTP reverse proxy and load balancer. From 2.11.0 until 2.11.57 and 3.7.13, the HTTP/3 entrypoint ConnContext does not call service.AddTransportOnContext, so kerberosRoundTripper uses a shared backend transport instead of a transport
- 7.2 High severity
cyberpanel: Improper Authentication
CyberPanel before 3.0.5 fails to enforce two-factor authentication on API endpoints, allowing attackers to bypass TOTP requirements using password-derived tokens. Attackers who obtain an administrator's password can derive API tokens and perform administrative
- 7.5 High severity
miniOrange 2FA: Improper Authentication
The miniOrange 2FA WordPress plugin before 6.3.1, miniOrange 2FA WordPress plugin before 19.3 does not scope its second-factor attempt limit to the account being attacked, keying it instead to an identifier the client supplies and can change at will, allowing
- 7.3 High severity
inventory-management-system: Improper Authentication
A security flaw has been discovered in Rizwan17 inventory-management-system up to bfe78a330d01bb26b9daec5dc9ecd5c77900e03f. Affected by this vulnerability is the function DBOperation.addCategory of the file includes/process.php of the component AJAX Backend. T
- 8.1 High severity
open-webui: Improper Neutralization of Wildcards or Matching Symbols
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.41 until 0.11.1, get_user_by_oauth_sub and get_user_by_scim_external_id in backend/open_webui/models/users.py used JSON contains matching that compiled to SQL LIKE s
- 9.3 Critical severity
mantisbt: Improper Authentication
MantisBT is an open source bug tracker. Versions 2.28.3 and earlier contain a critical authentication bypass in the SOAP API's mci_check_login() function. Any user knowing any valid cookie_string can authenticate as any other user (knowing their username), inc
- 7.4 High severity
parse-server: Improper Authentication
Parse Server versions <= 8.6.87 and >= 9.0.0 < 9.10.1-alpha.7 contain an authentication bypass in the built-in LDAP authentication adapter. The adapter forwarded the client-supplied password to the directory without verifying that a password had been supplied,
- 8.8 High severity
WP Plugin Web: Improper Authentication
Several Newfold plugins are vulnerable to Authentication Bypass. The vulnerability exists because the plugins bundle the wp-module-data module. In the module, the `authenticate()` method — registered on the `rest_authentication_errors` filter and therefore eva
- 8.1 High severity
Next-Cart Store to WooCommerce Migration: Improper Authentication
The Next-Cart Store to WooCommerce Migration plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 3.9.8 via the `NCWM_Kitconnect::run()` function. This is due to the plugin registering the `/wp-json/next_cart/v1/mig
- 7.3 High severity
Open-Web-Analytics: Improper Authentication
A vulnerability was detected in Open-Web-Analytics up to 1.9.1. The impacted element is the function checkCapabilityAndAuthenticateUser of the file Core/Controller.php of the component Controller. Performing a manipulation results in improper authentication. T