Improper access control in kimai2 - #VU125949
Published: April 14, 2026
Vulnerability identifier: #VU125949
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Kevin Papst
Affected software:
kimai2
kimai2
Detailed vulnerability description
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper access control in the Twig sandbox policy for invoice templates when rendering user-controlled invoice templates. A remote privileged user can embed calls to sensitive User methods in a crafted invoice template to disclose sensitive information.
Only on-premise installations with template upload activated are affected, and user interaction is required because a user must generate an invoice using the malicious template.
Remediation
Install security update from vendor's website.