medium4.3
CVE-2026-42174
Kirby CMS doesn't gate user avatar creation, replacement and deletion with user update permissions
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | getkirby/cms | <= 4.8.0 | 4.9.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Getkirby | Kirby | before 4.9.0 from 5.0.0 before 5.4.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-39cp-6679-8xv2
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2026-42174