Vulnerability · Published Oct 16, 2026 · Assigned by VulnCheck

CVE-2026-111709WhaTicket Community through commit cf04795 IDOR via /tickets/:ticketId and /messages/:ticketId

Medium 5.4

In plain English

A medium-severity authorization bypass via user-controlled key 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 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 87.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

WhaTicket Community through commit cf04795 contains an insecure direct object reference vulnerability that allows authenticated agents to access other agents' tickets because ShowTicketService performs no ownership or queue checks. Attackers can supply another agent's ticket id to GET /tickets/:ticketId and /messages/:ticketId to read full message history and POST WhatsApp replies.

Affected products (as reported)

Vendor	Product	Versions
canove	whaticket-community	0 – through cf047955a6f0d07002ed89c67d765c28d06f8d52

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

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/TicketServices/ShowTicketService.ts technical-description
https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/controllers/MessageController.ts#L24-L58 technical-description
https://github.com/canove/whaticket-community product
VulnCheck Advisory: WhaTicket Community through commit cf04795 IDOR via /tickets/:ticketId and /messages/:ticketId third-party-advisory