CVE-2026-111345: Trudesk through 1.2.11 Authorization Bypass via GET /api/v1/messages/conversation/:id

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-15 · updated 2026-10-16
Weakness: CWE-639

Description

Trudesk through 1.2.11 contains an authorization bypass vulnerability that allows any authenticated user to read private conversations by supplying another conversation's id. Attackers can request GET /api/v1/messages/conversation/:id, which lacks participant checks, to obtain full message history plus participants' usernames, full names and email addresses.

Affected products

polonel/trudesk: through 1.2.11

References

https://github.com/polonel/trudesk
https://github.com/polonel/trudesk/blob/v1.2.11/src/controllers/api/v1/messages.js#L255-L308
https://github.com/polonel/trudesk/blob/v1.2.11/src/models/chat/message.js#L70-L101
https://hackmd.io/@hieuPenguinnn/trudesk-conversation-messages-idor
https://www.vulncheck.com/advisories/trudesk-through-1.2.11-authorization-bypass-via-get-api-v1-messages-conversation-id

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