{"action":"Upgrade getkirby/cms to 4.9.0 or later.","affected":[{"fixed":"4.9.0","introduced":"0"},{"fixed":"5.4.0","introduced":"5.0.0"}],"component":"getkirby/cms","cve_ids":["CVE-2026-42174"],"ecosystem":"Packagist","epss":0.00237,"exploited":false,"fixed_versions":["4.9.0","5.4.0"],"ghsa_id":"GHSA-39cp-6679-8xv2","id":"tcs_01M5KESV7FAPWE70JSA46GR8SJ","modified_at":"2026-05-13T13:54:57.969739Z","published_at":"2026-05-04T19:58:43Z","references":["https://osv.dev/vulnerability/GHSA-39cp-6679-8xv2","https://github.com/getkirby/kirby/security/advisories/GHSA-39cp-6679-8xv2","https://nvd.nist.gov/vuln/detail/CVE-2026-42174","https://github.com/getkirby/kirby","https://github.com/getkirby/kirby/releases/tag/4.9.0","https://github.com/getkirby/kirby/releases/tag/5.4.0"],"severity":{"label":"medium"},"sources":[{"source":"osv","source_id":"GHSA-39cp-6679-8xv2","url":"https://osv.dev/vulnerability/GHSA-39cp-6679-8xv2"}],"summary":"Kirby CMS doesn't gate user avatar creation, replacement and deletion with user update permissions"}