CVE-2026-40866CWE-284CWE-639

Horilla: Unauthorized Document Overwrite via File Upload Endpoint

High · published April 21, 2026

CVSS v4.0
8.6
EPSS
0%
Percentile
27.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.6 · HIGH
Vector
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
EPSS
0.00351 · 27.5th percentile
Weaknesses
CWE-284 · Improper Access Control; CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-04-21T18:15Z
EPSS history
Timeline
  • 21 APR 18:15Z
    Horilla: Unauthorized Document Overwrite via File Upload Endpoint
    cvelistv5