CVE-2026-114400

Trudesk through 1.2.11 Missing Authentication for Ticket Attachments via /uploads

Trudesk through 1.2.11 contains a missing authentication vulnerability that allows unauthenticated attackers to download private ticket attachments under /uploads. Because express.static serves the public/ directory before the hasAuth-guarded /uploads mount, attackers who know or guess a ticket ObjectId and filename can retrieve confidential attachments.

Affected

polonel · trudesk

CVSS v4.0 VULNCHECK

8.2 HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/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

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 VULNCHECK

5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.50% chance of exploitation in the next 30 days, 43rd percentile

Published

2026-10-21

Updated

2026-10-23

Proof-of-concept exploits (2)

• https://hackmd.io/@leediay/multiple-vuln-trudesk-1211find archive
• https://zineausa.com/blog/2026/10/trudesk-1-2-11-unauthorized-ticket-access-idor/find archive

CVE references

• polonel/trudesk/issues/754REFERENCE
• https://www.vulncheck.com/advisories/trudesk-through-1.2.11-missing-authentication-for-ti…ADVISORY
• https://zineausa.com/blog/2026/10/trudesk-1-2-11-unauthorized-ticket-access-idorADVISORY

References

• CVE Record
• NVD entry