Description
Trudesk through 1.2.11 contains an authorization bypass vulnerability that allows authenticated users to read tickets outside their groups via GET /api/v1/tickets/:uid. Attackers can enumerate sequential ticket uids to read every ticket's subject, issue, comments, owner and assignee, because the apiTickets.single handler skips group membership checks.
Affected products
trudesk_project: trudesk
References5
- hackmd.io/@leediay/multiple-vuln-trudesk-1211 ExploitThird Party Advisory
- zineausa.com/blog/2026/10/trudesk-1-2-11-unauthorized-ticket-ac… ExploitThird Party Advisory
- zineausa.com/blog/2026/10/trudesk-1-2-11-unauthorized-ticket-ac… ExploitThird Party Advisory
- github.com/polonel/trudesk/issues/754 Product
- www.vulncheck.com/advisories/trudesk-through-1.2.11-authorizati… Third Party Advisory
Metrics
- CVSS 3.1
-
5.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 4.0
-
6.9
MEDIUM
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 38 · as of 8 November 2026
- CWE
- CWE-639
Could this be exploited in your environment?
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