{"id":"GHSA-m4g4-86qc-v8w7","aliases":["CVE-2026-55779"],"title":"silverstripe/versioned has XSS in archive admin restore","titleSource":"OSV","descriptionSource":"OSV","declaredSeverity":"MODERATE","description":"### Impact\nIt's possible to use the page title as an XSS vector when restoring a page in ArchiveAdmin\n\n### Reporter\nSteve Boyd\nSilverstripe Ltd.","severity":"medium","score":5.4,"published":"2026-08-28T22:19:32.000Z","modified":"2026-08-28T22:40:41.919Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"silverstripe/versioned","sources":[{"name":"OSV · GHSA-m4g4-86qc-v8w7","url":"https://osv.dev/vulnerability/GHSA-m4g4-86qc-v8w7"}],"ranges":[{"events":[{"introduced":"0"},{"fixed":"3.2.1"}],"type":"ECOSYSTEM"}],"versions":["1.0.0","1.0.0-alpha6","1.0.0-alpha7","1.0.0-beta1","1.0.0-beta2","1.0.0-beta3","1.0.0-beta4","1.0.0-rc1","1.0.0-rc2","1.0.0-rc3","1.0.1","1.0.1-rc1","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6","1.0.7","1.1.0","1.1.0-rc1","1.1.0-rc2","1.1.1","1.1.2","1.1.3","1.1.4","1.1.5","1.10.0","1.10.0-beta1","1.10.0-rc1","1.10.1","1.10.2","1.11.0","1.11.0-beta1","1.11.0-rc1","1.11.1","1.12.0","1.12.0-beta1","1.12.0-rc1","1.12.1","1.13.0","1.13.0-beta1","1.13.0-rc1","1.13.1","1.13.2","1.13.3","1.13.4","1.13.5","1.13.6","1.13.7","1.2.0","1.2.0-beta1","1.2.1","1.2.2","1.2.3","1.2.4","1.2.5","1.3.0","1.3.0-rc1","1.3.1","1.3.2","1.3.3","1.3.4","1.3.5","1.3.6","1.4.0","1.4.0-rc1","1.4.1","1.4.2","1.4.3","1.4.4","1.4.5","1.4.6","1.5.0","1.5.0-alpha1","1.5.0-rc1","1.5.0-rc2","1.5.1","1.5.2","1.5.3","1.6.0","1.6.0-beta1","1.6.0-rc1","1.6.1","1.6.2","1.6.3","1.7.0","1.7.0-beta1","1.7.0-rc1","1.7.1","1.7.2","1.7.3","1.8.0","1.8.0-beta1","1.8.0-rc1","1.9.0","1.9.0-alpha1","1.9.0-beta1","1.9.0-rc1","2.0.0","2.0.0-alpha1","2.0.0-beta1","2.0.0-beta2","2.0.0-rc1","2.0.1","2.0.2","2.1.0","2.1.0-beta1","2.1.0-rc1","2.1.1","2.1.2","2.1.3","2.2.0","2.2.0-beta1","2.2.0-rc1","2.2.1","2.2.2","2.3.0","2.3.0-beta1","2.3.0-rc1","2.3.1","2.3.2","2.4.0","2.4.0-beta1","2.4.0-rc1","2.4.1","2.4.2","2.4.3","2.4.4","2.4.5","2.4.6","2.4.7","2.4.8","3.0.0","3.0.0-alpha1","3.0.0-beta1","3.0.0-rc1","3.0.1","3.0.2","3.1.0","3.1.0-beta1","3.1.0-rc1","3.1.1","3.1.2","3.1.3","3.1.4","3.2.0","3.2.0-beta1","3.2.0-rc1"],"fixed":["3.2.1"]}],"sourceAffected":[],"references":["https://github.com/silverstripe/silverstripe-versioned/security/advisories/GHSA-m4g4-86qc-v8w7","https://github.com/silverstripe/silverstripe-versioned/pull/541","https://github.com/silverstripe/silverstripe-versioned/commit/6e30a2cf8d4b9233690464da61bd0fc4d3e92952","https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/versioned/CVE-2026-55779.yaml","https://github.com/silverstripe/silverstripe-versioned","https://github.com/silverstripe/silverstripe-versioned/releases/tag/3.2.1","https://www.silverstripe.org/download/security-releases/cve-2026-55779"],"sources":[{"name":"OSV","id":"GHSA-m4g4-86qc-v8w7","modified":"2026-08-28T22:40:41.919973Z","url":"https://osv.dev/vulnerability/GHSA-m4g4-86qc-v8w7"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","score":5.4}],"products":[],"remediation":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T20:25:31.474Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}