CVE-2026-42174

Kirby is an open-source content management system. Prior to versions 4.9.0 and 5.4.0, user avatar creation, replacement and deletion are not gated by user update permissions. This issue has been patched in versions 4.9.0 and 5.4.0.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/getkirby/kirby/releases/tag/4.9.0	Release Notes
https://github.com/getkirby/kirby/releases/tag/5.4.0	Release Notes
https://github.com/getkirby/kirby/security/advisories/GHSA-39cp-6679-8xv2	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:getkirby:kirby::::::::
	cpe:2.3:a:getkirby:kirby::::::::

History

18 May 2026, 13:00

Type	Values Removed	Values Added
First Time		Getkirby kirby Getkirby
CPE		cpe:2.3:a:getkirby:kirby::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.3
References	~~() https://github.com/getkirby/kirby/releases/tag/4.9.0 -~~	() https://github.com/getkirby/kirby/releases/tag/4.9.0 - Release Notes
References	~~() https://github.com/getkirby/kirby/releases/tag/5.4.0 -~~	() https://github.com/getkirby/kirby/releases/tag/5.4.0 - Release Notes
References	~~() https://github.com/getkirby/kirby/security/advisories/GHSA-39cp-6679-8xv2 -~~	() https://github.com/getkirby/kirby/security/advisories/GHSA-39cp-6679-8xv2 - Patch, Vendor Advisory

09 May 2026, 04:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-09 04:16

Updated : 2026-05-18 13:00

NVD link : CVE-2026-42174

Mitre link : CVE-2026-42174

CVE.ORG link : CVE-2026-42174

JSON object : View

Products Affected

getkirby

kirby

CWE

CWE-862

Missing Authorization

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