Vulnerability · Published Oct 16, 2026 · Assigned by VulnCheck
CVE-2026-111708WhaTicket Community through commit cf04795 Admin Self-Registration via /auth/signup
Critical 9.8
In plain English
A critical-severity privilege mismanagement in whaticket-community from canove. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.6%top 52.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| canove | whaticket-community | 0 – through cf047955a6f0d07002ed89c67d765c28d06f8d52 |
Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://hackmd.io/@hieuPenguinnn/whaticket-community-signup-eop-ticket-idor third-party-advisory
- https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/services/UserServices/CreateUserService.ts#L23-L65 technical-description
- https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/controllers/UserController.ts#L29-L48 technical-description
- https://github.com/canove/whaticket-community product
- VulnCheck Advisory: WhaTicket Community through commit cf04795 Admin Self-Registration via /auth/signup third-party-advisory