CVE-2026-111708 PUBLISHED

WhaTicket Community through commit cf04795 contains an authentication bypass vulnerability that allows unauthenticated attackers to self-register as administrators via POST /auth/signup. Attackers can omit the profile field or set it to admin, gaining user management, settings, and access to all tickets, contacts, messages, and WhatsApp connections.

• hieuPenguinnn finder

• https://hackmd.io/@hieuPenguinnn/whaticket-community-signup-eop-ticket-idor
• https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/services/UserServices/CreateUserService.ts#L23-L65
• https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/controllers/UserController.ts#L29-L48
• https://github.com/canove/whaticket-community
• VulnCheck Advisory: WhaTicket Community through commit cf04795 Admin Self-Registration via /auth/signup

• Improper Privilege Management CWE