Kimai 2 vulnerable to persistent cross-site scripting in the timesheet descriptions
Date: 2026-02
Affected: composer/kimai/kimai
Attack vector: xss
Category: vulnerability-disclosure
Severity: Critical
CVE: CVE-2019-15481
CVE-2019-25317
CVE-2020-19825
CWE: CWE-79
CVSS: 6.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N)

Kimai 2 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts into timesheet descriptions. Attackers can insert SVG-based XSS payloads in the description field to execute arbitrary JavaScript when the page is loaded and viewed by other users.


Mitigations:

Architectural layers (MAESTRO):