CVE-2026-40866

Horilla: Unauthorized Document Overwrite via File Upload Endpoint

State: Published
Severity: 8.6 High
Published: Apr 21, 2026
Updated: Apr 21, 2026
Reserved: Apr 15, 2026

Description

Horilla is a free and open source Human Resource Management System (HRMS). In 1.5.0, an insecure direct object reference in the employee document upload endpoint allows any authenticated user to overwrite or replace or corrupt another employee’s document by changing the document ID in the upload request. This enables unauthorized modification of HR records.

Scores

CVSS	Score	Vector	Source
4.0	8.6 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-284 Improper Access Control
CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

Product	Versions
horillahorilla-opensource	1.5.0Affected

References

https://github.com/horilla/horilla-hr/security/advisories/GHSA-q2qh-v828-r4p7

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