CVE-2026-111709

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/canove/whaticket-community
https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/controllers/MessageController.ts#L24-L58
https://github.com/canove/whaticket-community/blob/cf047955a6f0d07002ed89c67d765c28d06f8d52/backend/src/services/TicketServices/ShowTicketService.ts
https://hackmd.io/@hieuPenguinnn/whaticket-community-signup-eop-ticket-idor
https://www.vulncheck.com/advisories/whaticket-community-through-commit-cf04795-idor-via-tickets-ticketid-and-messages-ticketid
https://hackmd.io/@hieuPenguinnn/whaticket-community-signup-eop-ticket-idor

Configurations

No configuration.

History

21 Oct 2026, 22:16

Type	Values Removed	Values Added
References	~~() https://hackmd.io/@hieuPenguinnn/whaticket-community-signup-eop-ticket-idor -~~	() https://hackmd.io/@hieuPenguinnn/whaticket-community-signup-eop-ticket-idor -

16 Oct 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-16 18:17

Updated : 2026-10-21 22:16

NVD link : CVE-2026-111709

Mitre link : CVE-2026-111709

CVE.ORG link : CVE-2026-111709

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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