CVE-2026-42051

MEDIUM EPSS 9.2%
Published May 9, 20261mo ago · Modified Jun 17, 20262w ago
5.3 CVSS 4.0
Medium
Find Similar
Published May 9, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
5.3
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
9.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

Affected Products 2

VendorProductVersionRange
getkirbykirby* <4.9.0
getkirbykirby*≥5.0.0  –  <5.4.0

References 3

  • github.com https://github.com/getkirby/kirby/releases/tag/4.9.0
    Release Notes
  • github.com https://github.com/getkirby/kirby/releases/tag/5.4.0
    Release Notes
  • github.com https://github.com/getkirby/kirby/security/advisories/GHSA-x68m-c7jf-2572
    PatchVendor Advisory

Remediation

  • github.com https://github.com/getkirby/kirby/security/advisories/GHSA-x68m-c7jf-2572
    PatchVendor Advisory