CVE-2026-42137

HIGH EPSS 22.0%
Published May 9, 20261mo ago · Modified Jun 17, 20262w ago
7.1 CVSS 4.0
High
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, `pages.access/list` and `files.access/list` permissions are not consistently checked in the Panel and REST API. This issue has been patched in versions 4.9.0 and 5.4.0.

CVSS Details

Base Score
7.1
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/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
22.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-862 Missing Authorization Authorization
CWE-863 Incorrect 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-85x2-r8xv-ww8c
    PatchVendor Advisory

Remediation

  • github.com https://github.com/getkirby/kirby/security/advisories/GHSA-85x2-r8xv-ww8c
    PatchVendor Advisory