CVE-2026-42137

HIGH CVSS 4.0: 7.1 EPSS 0.30%
Updated Jul 24, 2026
Getkirby
Parameter Value
CVSS 7.1 (HIGH)
Affected Versions 5.0.0 — 5.4.0
Fixed In 4.9.0
Type CWE-863 (Incorrect Authorization), CWE-862 (Missing Authorization)
Vendor Getkirby
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0

Vulnerable Products 2

Configuration From (including) Up to (excluding)
Getkirby Kirby
cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*
4.9.0
Getkirby Kirby
cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*
5.0.0 5.4.0