{"action":"Upgrade redaxo/source to 5.21.2 or later.","affected":[{"fixed":"5.21.2","introduced":"0"}],"component":"redaxo/source","cve_ids":["CVE-2026-63001"],"ecosystem":"Packagist","epss":0.00186,"exploited":false,"fixed_versions":["5.21.2"],"ghsa_id":"GHSA-mf2p-wjp4-99pq","id":"tcs_01M5KF5F25FFRPD0SE0D9XKH6R","modified_at":"2026-09-23T14:15:04.450222498Z","published_at":"2026-09-23T14:04:40Z","references":["https://osv.dev/vulnerability/GHSA-mf2p-wjp4-99pq","https://github.com/redaxo/core/security/advisories/GHSA-mf2p-wjp4-99pq","https://github.com/redaxo/core/pull/6581","https://github.com/redaxo/core/commit/2daaa3a30570bc76a82f63fd21fb8c9c2cd5dc7c","https://github.com/redaxo/core","https://github.com/redaxo/core/releases/tag/5.21.2"],"severity":{"label":"medium","score":4.8},"sources":[{"source":"osv","source_id":"GHSA-mf2p-wjp4-99pq","url":"https://osv.dev/vulnerability/GHSA-mf2p-wjp4-99pq"}],"summary":"REDAXO: Stored XSS via Unescaped Media Manager Type Name in `mediaIsInUse()`"}