Trudesk through 1.2.11 Authorization Bypass via Ticket Update API Endpoints

Advisories

Trudesk through 1.2.11 Authorization Bypass via Ticket Update API Endpoints

Severity: medium
Date: 10/21/2026
Affecting: trudesk <= 1.2.11
CVE: CVE-2026-114393
CWE: CWE-639 Authorization Bypass Through User-Controlled Key
CVSS: 5.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
References: https://hackmd.io/@leediay/multiple-vuln-trudesk-1211
https://github.com/polonel/trudesk/blob/v1.2.11/src/controllers/api/v1/tickets.js#L767-L883
https://github.com/polonel/trudesk/blob/v1.2.11/src/controllers/api/v2/tickets.js#L167-L197
https://github.com/polonel/trudesk
Credit: leediay153 from Viettel Post
Description: Trudesk through 1.2.11 contains an authorization bypass vulnerability that allows any authenticated user to modify tickets outside their groups via PUT /api/v1/tickets/:id and PUT /api/v2/tickets/batch. Attackers can supply arbitrary ticket ObjectIds to change status, subject, group, priority or assignee, or mass-close tickets, since only the default tickets:update role grant is checked.

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