CVE-2026-42051CWE-862

Kirby: System API endpoint leaks license data and installed version to authenticated users

Medium · published May 9, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
25.0
In the wild
Unconfirmed
What it is

Kirby is an open-source content management system. Prior to versions 4.9.0 and 5.4.0, the system API endpoint leaks license data and installed version to authenticated users. This issue has been patched in versions 4.9.0 and 5.4.0.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00331 · 25.0th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-05-09T03:37Z
EPSS history
Timeline
  • 09 MAY 03:37Z
    Kirby: System API endpoint leaks license data and installed version to authenticated users
    cvelistv5