Vulnerability · Published Apr 21, 2026 · Assigned by GitHub_M

CVE-2026-40867Horilla: Unauthorized Helpdesk Attachment Access via Attachment ID Manipulation

High 7.1

In plain English

A high-severity improper access control in horilla from horilla-opensource. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.2%top 89.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Horilla is a free and open source Human Resource Management System (HRMS). In 1.5.0, a broken access control vulnerability in the helpdesk attachment viewer allows any authenticated user to view attachments from other tickets by changing the attachment ID. This can expose sensitive support files and internal documents across unrelated users or teams.

Affected products (as reported)

Vendor	Product	Versions
horilla-opensource	horilla	1.5.0

Weakness: CWE-284, CWE-639 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://github.com/horilla/horilla-hr/security/advisories/GHSA-j6qp-j853-qrff x_refsource_CONFIRM