Missing Authorization Affecting kimai/kimai package, versions <2.51.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Missing Authorization vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-PHP-KIMAIKIMAI-15444423
- published10 Mar 2026
- disclosed4 Mar 2026
- creditUnknown
Introduced: 4 Mar 2026
CVE-2026-28685 (opens in a new tab)How to fix?
Upgrade kimai/kimai to version 2.51.0 or higher.
Overview
Affected versions of this package are vulnerable to Missing Authorization via the cgetAction function in InvoiceController.php, which lacks proper customer-level access control. An attacker can access sensitive invoice data belonging to other teams by sending authenticated API requests with sufficient role permissions.