{"action":"Upgrade redaxo/source to 5.20.2 or later.","affected":[{"fixed":"5.20.2","introduced":"0"}],"component":"redaxo/source","cve_ids":["CVE-2026-21857"],"ecosystem":"Packagist","epss":0.00535,"exploited":false,"fixed_versions":["5.20.2"],"ghsa_id":"GHSA-824x-88xg-cwrv","id":"tcs_01M5KEYHRZ72Y7XFXFEA49BEA7","modified_at":"2026-02-03T03:16:15.825644Z","published_at":"2026-01-05T20:02:58Z","references":["https://osv.dev/vulnerability/GHSA-824x-88xg-cwrv","https://github.com/redaxo/redaxo/security/advisories/GHSA-824x-88xg-cwrv","https://nvd.nist.gov/vuln/detail/CVE-2026-21857","https://github.com/redaxo/redaxo","https://github.com/redaxo/redaxo/releases/tag/5.20.2"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-824x-88xg-cwrv","url":"https://osv.dev/vulnerability/GHSA-824x-88xg-cwrv"},{"source":"nvd","source_id":"CVE-2026-21857","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21857"}],"summary":"Redaxo has Path Traversal in Backup Addon Leading to Arbitrary File Read"}