CVE-2026-16570 NextScripts: Social Networks Auto-Poster < 4.4.8 - Reflected XSS via Facebook OAuth Callback

The NextScripts: Social Networks Auto-Poster WordPress plugin before 4.4.8 does not escape some of the query-string parameters it reflects back on one of its admin pages, allowing attackers to perform Reflected Cross-Site Scripting attacks against logged-in users such as administrators who are...

GHSA-29RF-F4VV-PVQ6 Authorizer: Zero-click account takeover via OAuth identity linking to unverified email accounts

The OAuth callback handler links incoming OAuth identities Google, GitHub, etc. to existing accounts matched by email address without verifying that the existing account's email was verified by its original owner. An attacker who pre-registers with a victim's email address without verifying it...

PT-2026-70257

TypeBot is a chatbot builder tool. Prior to version 3.17.0, the Google Sheets OAuth callback decodes a base64-encoded JSON state parameter and trusts the embedded workspaceId, typebotId, blockId, and redirectUrl without cryptographic integrity protection or authorization checks. The callback rout...

PT-2026-70358

Activepieces is an open source AI workflow automation platform. Prior to 0.83.0, the /api/redirect OAuth callback endpoint embeds the user-supplied code query parameter directly into an inline script block without proper escaping. A crafted request to /api/redirect with a malicious code value can...

CVE-2026-72871 Dokploy: Unauthenticated Git Provider Injection via GitHub OAuth Callback

Dokploy is a free, self-hostable Platform as a Service PaaS. Prior to 0.29.13, the unauthenticated /api/providers/github/setup route in apps/dokploy/pages/api/providers/github/setup.ts trusts ghinit organizationId and userId values from the state parameter and calls createGithub in...

CVE-2026-72871 Dokploy: Unauthenticated Git Provider Injection via GitHub OAuth Callback

Dokploy is a free, self-hostable Platform as a Service PaaS. Prior to 0.29.13, the unauthenticated /api/providers/github/setup route in apps/dokploy/pages/api/providers/github/setup.ts trusts ghinit organizationId and userId values from the state parameter and calls createGithub in...

CVE-2026-72871

Dokploy (PaaS) vulnerability CVE-2026-72871: Before version 0.29.13, the unauthenticated /api/providers/github/setup route in Dokploy trusts gh_init organizationId and userId from the state and calls createGithub, enabling an attacker to insert a GitHub App provider containing client_secret, webh...

EUVD-2026-55004

The Salon Booking System WordPress plugin through 10.30.33 does not perform any capability check or validate an OAuth state value on its Google Calendar authorization callback, which is also hooked for unauthenticated users, allowing an unauthenticated attacker to overwrite the site's stored Goog...

CVE-2026-66885

Livebook CVE-2026-66885 is a CSRF weakness in the Livebook Teams identity callback. When configured for Livebook Teams, the OAuth-style callback does not bind to the initiating browser session (no state/nonce, auth request body empty). The code parameter is exchanged for an access token and writt...

Authorization Bypass Through User-Controlled Key

Overview alextselegidis/easyappointments is a powerful Open Source Appointment Scheduler that can be installed on your server. Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key in the oauthcallback process. An attacker can access and modify anoth...

PYSEC-2026-2476 FastMCP: Missing Consent Verification in OAuth Proxy Callback Facilitates Confused Deputy Vulnerabilities

Summary While testing the GitHubProvider OAuth integration, which allows authentication to a FastMCP MCP server via a FastMCP OAuthProxy using GitHub OAuth, it was discovered that the FastMCP OAuthProxy does not properly validate the user's consent upon receiving the authorization code from GitHu...

CVE-2026-12597

Summary (CVE-2026-12597) : The LoginPress Pro WordPress plugin (versions up to and including 6.2.3) contains an authentication bypass via the GitHub OAuth callback. The flaw resides in the loginpress_on_github_login() function, which blindly trusts the first element (profile[0]['email']) from Git...

PYSEC-2026-1491 Khoj has an IDOR in Notion OAuth Flow that Enables Index Poisoning

Summary An IDOR in the Notion OAuth callback allows an attacker to hijack any user's Notion integration by manipulating the state parameter. The callback endpoint accepts any user UUID without verifying the OAuth flow was initiated by that user, allowing attackers to replace victims' Notion...

PYSEC-2026-1364 FastMCP vulnerable to reflected XSS in client's callback page

Summary While setting up an oauth client, it was noticed that the callback page hosted by the client during the flow embeds user-controlled content without escaping or sanitizing it. This leads to a reflected Cross-Site-Scripting vulnerability. Details The affected code is located in...

CVE-2026-58422 Improper authorization on OAuth sign-in callback silently re-enables administrator-disabled accounts

Improper authorization on OAuth sign-in callback silently re-enables administrator-disabled accounts...

CVE-2026-57958

Mixpost through 2.6.0 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript in authenticated users' browsers by crafting malicious OAuth callback URLs with unsanitized error query parameters. Attackers can exploit the OAuth...

EUVD-2026-40143

Mixpost through 2.6.0 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to execute arbitrary JavaScript in authenticated users' browsers by crafting malicious OAuth callback URLs with unsanitized error query parameters. Attackers can exploit the OAuth...

CVE-2026-13543 Documenso Google OAuth Login handle-oauth-callback-url.ts improper authentication

A vulnerability was detected in Documenso up to 2.11.0. Affected by this vulnerability is an unknown functionality of the file packages/auth/server/lib/utils/handle-oauth-callback-url.ts of the component Google OAuth Login. The manipulation results in improper authentication. It is possible to...

CVE-2026-13543 Documenso Google OAuth Login handle-oauth-callback-url.ts improper authentication

A vulnerability was detected in Documenso up to 2.11.0. Affected by this vulnerability is an unknown functionality of the file packages/auth/server/lib/utils/handle-oauth-callback-url.ts of the component Google OAuth Login. The manipulation results in improper authentication. It is possible to...

EUVD-2026-33960

NamelessMC is website software for Minecraft servers. In versions 2.2.4 and prior, the OAuth callback handling does not validate the state parameter server-side before exchanging the authorization code. This allows an attacker to capture a valid OAuth callback URL for their own account and cause ...