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
3,168 results · Feed
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High 8.0
Remote Access Management service/API (RPC server) Elevation of Privilege Vulnerability
Improper authentication in Windows RPC API allows an unauthorized attacker to elevate privileges over an adjacent network.
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High 7.8
Windows Admin Center Elevation of Privilege Vulnerability
Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges locally.
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Medium 6.5
Windows Admin Center Information Disclosure Vulnerability
Improper authentication in Windows Admin Center allows an authorized attacker to disclose information over a network.
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High 8.1
Windows Admin Center Elevation of Privilege Vulnerability
Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges over a network.
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High 8.2CVE-2026-50338 Public exploit
Azure Spring Apps Elevation of Privilege Vulnerability
Improper authentication in Azure Spring Apps allows an authorized attacker to elevate privileges over a network.
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Critical —
FacturaScripts: Account takeover of any 2FA-enabled user
# Authentication bypass in FacturaScripts: `/login?action=two-factor-validation` accepts brute-forceable TOTP without password or CSRF protection ## Summary `Core/Controller/Login.php::twoFactorValidationAction()` accepts an unauthenticated POST containing on…
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High 7.3
waooAI waoowaoo Internal Task Header api-auth.ts requireProjectAuthLight improper authentication
A weakness has been identified in waooAI waoowaoo up to 0.4.1. Affected by this vulnerability is the function getInternalTaskSession/getAuthSession/requireUserAuth/requireProjectAuth/requireProjectAuthLight in the library src/lib/api-auth.ts of the component …
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High 8.7
Missing authentication for Bluetooth communication
The charging station does not require authentication for Bluetooth commands to perform actions. The functionality exposed includes sensitive information leakage, triggering reboots, or pushing a firmware update URL.
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High 7.3
will-moss Isaiah Websocket Connection Authentication main.go improper authentication
A vulnerability has been found in will-moss Isaiah up to 1.36.9. This affects an unknown function of the file app/main.go of the component Websocket Connection Authentication. The manipulation leads to improper authentication. The attack can be initiated remo…
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High 7.3
RafyMrX TOKO-ONLINE-ROTI missing authentication
A weakness has been identified in RafyMrX TOKO-ONLINE-ROTI up to ddfe1cd587be0a0b5135d8b6e85cce2ec3aece99. This affects an unknown part. This manipulation causes missing authentication. The attack is possible to be carried out remotely. This product adopts a …
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Medium 5.9
Clean RESTful - Critical - Unsupported - SA-CONTRIB-2026-078
vulnerability in Drupal Clean RESTful allows . This issue affects Clean RESTful versions: *.*.
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Critical 9.1
Commerce guest registration - Critical - Unsupported - SA-CONTRIB-2026-079
Vulnerability in Drupal Commerce guest registration. This issue affects Commerce guest registration versions: *.*.
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Critical 9.0
TSDProxy: Internal proxy auth token forwarded to backend services enables management API escalation
## Description A vulnerability was discovered in TSDProxy where it forwards its internal per-process authentication token to all proxied backend services. When `identityHeaders` is enabled (the default), tsdproxy injects `x-tsdproxy-auth-token` into every ups…
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Critical 9.8
miniOrange Social Login and Register (Discord, Google, Twitter, LinkedIn) <= 7.7.0 - Unauthenticated Authentication Bypass to Administrator Account Takeover via Profile Completion OTP Flow
The miniOrange Social Login and Register (Discord, Google, Twitter, LinkedIn) plugin for WordPress is vulnerable to authentication bypass leading to account takeover in versions up to and including 7.7.0. This is due to the Profile Completion flow accepting a…
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Medium 6.8
RabbitMQ: AMQP 1.0, AMQP 0-9-1, Stream Protocol loopback enforcement can lead to remote guest sessions due to listener-address loopback checks
RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, AMQP 0-9-1, AMQP 1.0, and Stream Protocol authentication can allow a loopback-restricted user such as guest to connect remotely when traffic is accepted through a trust…
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High 8.1
Logto: Account Center MFA management step-up bypass via WebAuthn registration verification
Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, Logto's Account Center step-up check accepted any active verification record that belonged to the current user and had isVerified === true. A WebAuthn registration ver…
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Critical 9.6
Prowler: SAML Domain Claiming Enables Cross-Tenant Account Takeover
Prowler is a cloud security platform. Prior to 5.30.3, Prowler's SAML authentication flow trusted the email domain asserted in a SAMLResponse when deciding which tenant should receive the final token, and the ACS finish logic in api/src/backend/api/v1/views.p…
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Medium 4.8
ZITADEL: Auto-linking by email: IdP-side email verification is not checked
ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's external identity provider handler checks that the local user's email is verified but does not verify that the external IdP confirmed ownership of the same email before auto-li…
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High 7.4
ZITADEL: Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation)
ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's OAuth2 and OIDC CodeExchange, RefreshToken, and device token flows fail to verify that the requesting client matches the client that initiated the authorization flow…
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High 8.3
9router: Reverse proxy locality collapse allows unauthenticated access to 9router /v1 APIs
9Router is an AI router & token saver. Prior to 0.5.2, 9router treats loopback requests as trusted and allows /v1/* access without an API key, so a same-host reverse proxy that forwards public traffic to the backend through 127.0.0.1 causes src/dashboardGuard…
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Medium 6.5
Capgo - Account Creation Before CAPTCHA Validation in accept_invitation Endpoint
Capgo before 12.128.2 contains an improper validation vulnerability in the accept_invitation endpoint that creates user accounts before captcha validation is enforced. Attackers can bypass captcha protection by sending POST requests with invalid captcha token…
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High 8.1
LoginPress Pro <= 6.2.3 - Unauthenticated Authentication Bypass via Unverified OAuth Email in Spotify OAuth Callback
The LoginPress Pro plugin for WordPress is vulnerable to authentication bypass in versions up to and including 6.2.3 via the Spotify Social Login addon. This is due to the loginpress_on_spotify_login() function trusting the unverified 'email' field returned b…
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High 8.1
LoginPress Pro <= 6.2.3 - Unauthenticated Authentication Bypass via Unverified OAuth Email via Discord OAuth Callback
The LoginPress Pro plugin for WordPress is vulnerable to Authentication Bypass via Unverified OAuth Email in all versions up to and including 6.2.3. The vulnerability exists in the loginpress_on_discord_login() Discord OAuth callback handler, which accepts th…
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High 8.1
LoginPress Pro <= 6.2.3 - Unauthenticated Authentication Bypass via Unverified OAuth Email via GitHub OAuth Callback
The LoginPress Pro plugin for WordPress is vulnerable to Authentication Bypass via the GitHub OAuth callback in versions up to, and including, 6.2.3. The vulnerability exists in the loginpress_on_github_login() function, which blindly trusts the first element…
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Medium 6.8
OpenFGA: OIDC audience validation skipped when --authn-oidc-audience is unset
OpenFGA is an authorization/permission engine built for developers. Prior to 1.18.0, OpenFGA's OIDC authenticator skipped JWT audience validation when authn.method was set to oidc, authn.oidc.issuer was configured, and authn.oidc.audience was not set, allowin…
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High 8.0
Open WebUI: Terminal proxy forwards a spoofable, integrity-unbound user identity to the upstream (X-User-Id header and ws_terminal session_id query injection)
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, backend/open_webui/routers/terminals.py built the ws_terminal upstream URL from an unencoded session_id and appended user_id as a query parameter, allowing …
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Medium 6.5
mettle sendportal APIv1 Webhooks mailjet missing authentication
A vulnerability has been found in mettle sendportal up to 3.0.1. This issue affects the function sendgrid/postmark/postal/mailjet of the component APIv1 Webhooks. The manipulation leads to missing authentication. The attack is possible to be carried out remot…
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High 7.6
n8n: Cross-Issuer Token Exchange Account Binding via Subject-Only Identity Resolution
n8n is an open source workflow automation platform. Prior to 2.27.4 and from 2.28.0 prior to 2.28.1, n8n instances configured with more than one trusted token-exchange issuer resolved external identities to local accounts using only the JWT sub claim and igno…
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High 7.4
CoreWCF: SAML SubjectConfirmation methods and holder-of-key proof keys are not enforced
CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF SAML token validation does not enforce SubjectConfirmation method URIs or holder-of-key proof keys in SamlSecurityTokenHandler, all…
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High 8.8
NATS Server: Route API Auth Bypass
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, when no_auth_user was configured, a parser fast path intended for ordinary client connections could also apply to route or …
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High 8.8
LiteLLM: MCP Authentication Bypass via OAuth2 Passthrough Fallback
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.84.0, LiteLLM's MCP Streamable HTTP endpoint allowed an unauthenticated attacker to use a fabricated Authorization header to trigger an OAuth2 passthrough fallbac…
KEV Sep 2, 2026 -
High 7.1
Portainer: Unauthenticated Restore Endpoint Allows Admin Takeover on Uninitialised Portainer Instances
Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. In versions 2.39.0 through 2.39.3 and 2.40.0 until 2.43.0, unauthenticated restore…
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Critical 9.8
Improper Authentication vulnerability affecting DELMIA Apriso from Release 2020 through Release 2026
An Improper Authentication vulnerability affecting DELMIA Apriso from Release 2020 through Release 2026 could allow an attacker to gain privileged access to the server.
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Medium —
Flask-Security-Too: WebAuthn reauthentication freshness bypass via cross-user assertion
### Summary Flask-Security-Too 5.8.0 and 5.8.1 mark a session as reauthentication-fresh after processing a WebAuthn assertion whose proven credential belongs to a different user than the currently authenticated session user. The check that `GHSA-97r5-pg8x-p63…
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High 7.4
Coder's OIDC email_verified type coercion bypass enables account takeover via unverified email linking
Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, Coder's OIDC callback checked `email_verified` with a direct Go `bool` type assertion. When an IdP returned the claim …
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High 7.4
Coder vulnerable to OIDC account takeover via email-based user matching and email_verified bypass
Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, two flaws in Coder's OIDC login chained into account takeover. Email-based user matching fell back to linking by email…
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Critical 9.8
Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 …
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Critical 9.8
Trueview Security camera T18161- AF v4.9.60.0 contains an authentication bypass vulnerability caused by improper passwo…
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Critical 9.8
Fire-Boltt Smartwatch FB BGS001 Firmware: MOY-JS14-2.0.4 is vulnerable to Improper Authentication, The device accepts G…
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High 7.5
A flaw in the authentication mechanism for video stream requests in Genetec Security Center 5.14.0.0 prior to build 5.1…