CVE-2026-42137

Kirby: `pages.access/list` and `files.access/list` permissions are not consistently checked in the REST API and changes dialog

Published May 9, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-85x2-r8xv-ww8c Kirby CMS's `pages.access/list` and `files.access/list` permissions are not consistently checked in the Panel and REST API
History
Type Values Removed Values Added
CPEs cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Getkirby
Getkirby kirby
Vendors & Products Getkirby
Getkirby kirby
Type Values Removed Values Added
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.
Title Kirby: `pages.access/list` and `files.access/list` permissions are not consistently checked in the REST API and changes dialog
Weaknesses CWE-862
CWE-863
References
Metrics cvssV4_0

{'score': 7.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
May 12, 2026, 2:21 AM
Reserved
Apr 24, 2026, 5:15 PM
Status
Analyzed
Published
May 9, 2026, 4:16 AM
Modified
Jul 24, 2026, 7:10 PM