CVE-2026-73310 XenForo < 2.3.13 OAuth2 Authorization Code Token Theft via redirect_uri Bypass

XenForo before 2.3.13 contains an authorization flaw in the OAuth2 token endpoint that allows attackers controlling any allowlisted redirect URI to bypass redirect URI binding by submitting a different allowlisted URI than the one recorded at authorization time. Attackers can exchange an...

EUVD-2026-72781

XenForo before 2.3.13 contains an authorization flaw in the OAuth2 token endpoint that allows attackers controlling any allowlisted redirect URI to bypass redirect URI binding by submitting a different allowlisted URI than the one recorded at authorization time. Attackers can exchange an...

EUVD-2026-72780

XenForo before 2.3.13 contains an authentication bypass vulnerability in the OAuth2 token endpoint that allows unauthenticated attackers to obtain valid token pairs by submitting empty values for clientsecret and codeverifier parameters. Attackers can exploit PHP truthy evaluation logic, which...

CVE-2026-73309

XenForo before 2.3.13 is vulnerable to an authentication bypass in its OAuth2 token endpoint . An unauthenticated attacker can submit empty strings for the client_secret and code_verifier parameters; because PHP truthy evaluation treats empty strings as falsy, both the client secret check and the...

CVE-2026-73309 XenForo < 2.3.13 Authentication Bypass via OAuth2 Token Endpoint

XenForo before 2.3.13 contains an authentication bypass vulnerability in the OAuth2 token endpoint that allows unauthenticated attackers to obtain valid token pairs by submitting empty values for clientsecret and codeverifier parameters. Attackers can exploit PHP truthy evaluation logic, which...

RabbitMQ Management - OAuth 2 Client Secret Disclosure

RabbitMQ 3.13.15, 4.0.20, 4.1.11, and 4.2.6 contains an information disclosure caused by the obsolete GET /api/auth endpoint exposing OAuth 2 client secrets when management.oauthclientsecret is configured, letting unauthenticated attackers access sensitive credentials, exploit requires management...

ash-authentication-oauth2-oidc-account-takeover-cve-2026-49757-email-based-user-matching

CVE-2026-49757 — AshAuthentication OAuth2/OIDC Account Takeover Proof of Concept for CVE-2026-49757 — a critical vulnerability in AshAuthentication where OAuth2/OIDC callbacks resolved to local user accounts by email address instead of the strategy, sub identity pair, allowing unauthenticated...

onedrive_user_enum

onedriveuserenum v2.10 enumerate valid onedrive users For a full rundown of the enumeration technique and OneDrive enum, check out the blog here: https://www.trustedsec.com/blog/onedrive-to-enum-them-all/ If you are looking for the old, non-database vesion of OneDrive Enum, you can find it here:...

CVE-2026-82757

Server-Side Request Forgery SSRF vulnerability in ash-project ashauthenticationoauth2server allows an attacker who controls a client metadata URL and its DNS to make the server connect to internal or loopback addresses. publicip?/1 in AshAuthentication.Oauth2Server.CIMD.ReqFetcher enforces the...

CVE-2026-82756 ash_authentication_oauth2_server interpolates a tenant-derived value into the WWW-Authenticate challenge without escaping, allowing header parameter injection

Improper Encoding or Escaping of Output vulnerability in ash-project ashauthenticationoauth2server allows an unauthenticated attacker to inject arbitrary authentication parameters into the WWW-Authenticate challenge header. BearerPlug and RequireScopePlug built the Bearer resourcemetadata="..."...

CVE-2026-82753 Unauthenticated authorize requests create unbounded, never-expiring CIMD client rows and cache entries in ash_authentication_oauth2_server

Allocation of Resources Without Limits or Throttling vulnerability in ash-project ashauthenticationoauth2server allows an unauthenticated attacker to exhaust database storage and memory. The /authorize endpoint is unauthenticated by design. With Client ID Metadata Documents enabled, resolveclient...

EUVD-2026-72535

Allocation of Resources Without Limits or Throttling vulnerability in ash-project ashauthenticationoauth2server allows an unauthenticated attacker to exhaust database storage and memory. The /authorize endpoint is unauthenticated by design. With Client ID Metadata Documents enabled, resolveclient...

EEF-CVE-2026-82753 Unauthenticated authorize requests create unbounded, never-expiring CIMD client rows and cache entries in ash_authentication_oauth2_server

Summary Allocation of Resources Without Limits or Throttling vulnerability in ash-project ashauthenticationoauth2server allows an unauthenticated attacker to exhaust database storage and memory. The /authorize endpoint is unauthenticated by design. With Client ID Metadata Documents enabled,...

pgAdmin 4 - Authentication Bypass

pgAdmin 4 versions 8.11 and earlier are vulnerable to a security flaw in OAuth2 authentication. This vulnerability allows an attacker to potentially obtain the client ID and secret, leading to unauthorized access to user data. id: CVE-2024-9014 info: name: pgAdmin 4 - Authentication Bypass author...

Spring Security OAuth2 Remote Command Execution

Spring Security OAuth versions 2.0.0 to 2.0.9 and 1.0.0 to 1.0.5 contain a remote command execution vulnerability. When processing authorization requests using the whitelabel views, the responsetype parameter value was executed as Spring SpEL which enabled a malicious user to trigger remote comma...

gitea-CVE-2026-28699

CVE-2026-28699: Omisión de alcance OAuth2 de Gitea a través de autenticación básica HTTP Un token de acceso OAuth2 de Gitea con alcance solo read:user puede realizar acciones de escritura completas cuando se envía como Authorization: Basic base64:x-oauth-basic en lugar de como un token Bearer. La...

CVE-2020-10770-keycloak-exploit-poc

Keycloak Blind SSRF POC This is a step by step walk-through about how to test the Blind SSRF CVE-2020-10770 found by Lauritz Holtmann and documented in his blog post. He also briefly explained how to test it. This is just a more detailed explanation. All credits go to Lauritz. Setup I use Docker ...

cloudfoundry_uaa

Servidor de Autenticación y Cuentas de Usuario UAA de CloudFoundry El UAA es un servicio de gestión de identidades multi-inquilino, utilizado en Cloud Foundry, pero también disponible como un servidor OAuth2 independiente. Su función principal es la de proveedor OAuth2, emitiendo tokens para que...

oauth-scan

OAUTHScan Description OAUTHScan is a Burp Suite Extension written in Java with the aim to provide some automatic security checks, which could be useful during penetration testing on applications implementing OAUTHv2 and OpenID standards. The plugin looks for various OAUTHv2/OpenID vulnerabilities...

pocketbase-CVE-2026-44166

CVE-2026-44166: Pre-secuestro de cuentas OAuth2 en PocketBase Una colección de autenticación de PocketBase con OAuth2 habilitado permite al cliente pasar un objeto createData al registrarse. El correo electrónico dentro de createData nunca se verifica contra el correo electrónico que el proveedor...