CVE-2026-42174

Kirby: User avatar creation, replacement and deletion are not gated by user update permissions

State: Published
Severity: 5.3 Medium
Published: May 9, 2026
Updated: May 11, 2026
Reserved: Apr 25, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-862 Missing Authorization

Affected Products

Product	Versions
kirbygetkirby	< 4.9.0Affected >= 5.0.0, < 5.4.0Affected

References

https://github.com/getkirby/kirby/security/advisories/GHSA-39cp-6679-8xv2
https://github.com/getkirby/kirby/releases/tag/4.9.0
https://github.com/getkirby/kirby/releases/tag/5.4.0

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