{"id":"GHSA-rgcg-28xm-8mmw","aliases":["BIT-typo3-2021-32669","CVE-2021-32669"],"title":"Cross-Site Scripting in Backend Grid View","titleSource":"OSV","descriptionSource":"OSV","declaredSeverity":"MODERATE","description":"### Problem\nFailing to properly encode settings for _backend layouts_, the corresponding grid view is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability.\n\n### Solution\nUpdate to TYPO3 versions 8.7.41 ELTS, 9.5.28, 10.4.18, 11.3.1 that fix the problem described.\n\n### Credits\nThanks to TYPO3 core merger Oliver Bartsch who reported and fixed the issue.","severity":"medium","score":6.4,"published":"2021-07-22T19:37:41.000Z","modified":"2026-09-10T03:49:15.519Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"typo3/cms-core","sources":[{"name":"OSV · GHSA-rgcg-28xm-8mmw","url":"https://osv.dev/vulnerability/GHSA-rgcg-28xm-8mmw"}],"ranges":[{"events":[{"introduced":"8.0.0"},{"fixed":"8.7.41"}],"type":"ECOSYSTEM"}],"versions":["v8.7.10","v8.7.11","v8.7.12","v8.7.13","v8.7.14","v8.7.15","v8.7.16","v8.7.17","v8.7.18","v8.7.19","v8.7.20","v8.7.21","v8.7.22","v8.7.23","v8.7.24","v8.7.25","v8.7.26","v8.7.27","v8.7.28","v8.7.29","v8.7.30","v8.7.31","v8.7.32","v8.7.7","v8.7.8","v8.7.9"],"fixed":["8.7.41"]},{"ecosystem":"Packagist","name":"typo3/cms-core","sources":[{"name":"OSV · GHSA-rgcg-28xm-8mmw","url":"https://osv.dev/vulnerability/GHSA-rgcg-28xm-8mmw"}],"ranges":[{"events":[{"introduced":"9.0.0"},{"fixed":"9.5.28"}],"type":"ECOSYSTEM"}],"versions":["v9.0.0","v9.1.0","v9.2.0","v9.2.1","v9.3.0","v9.3.1","v9.3.2","v9.3.3","v9.4.0","v9.5.0","v9.5.1","v9.5.10","v9.5.11","v9.5.12","v9.5.13","v9.5.14","v9.5.15","v9.5.16","v9.5.17","v9.5.18","v9.5.19","v9.5.2","v9.5.20","v9.5.21","v9.5.22","v9.5.23","v9.5.24","v9.5.25","v9.5.26","v9.5.27","v9.5.3","v9.5.4","v9.5.5","v9.5.6","v9.5.7","v9.5.8","v9.5.9"],"fixed":["9.5.28"]},{"ecosystem":"Packagist","name":"typo3/cms-core","sources":[{"name":"OSV · GHSA-rgcg-28xm-8mmw","url":"https://osv.dev/vulnerability/GHSA-rgcg-28xm-8mmw"}],"ranges":[{"events":[{"introduced":"10.0.0"},{"fixed":"10.4.18"}],"type":"ECOSYSTEM"}],"versions":["v10.0.0","v10.1.0","v10.2.0","v10.2.1","v10.2.2","v10.3.0","v10.4.0","v10.4.1","v10.4.10","v10.4.11","v10.4.12","v10.4.13","v10.4.14","v10.4.15","v10.4.16","v10.4.17","v10.4.2","v10.4.3","v10.4.4","v10.4.5","v10.4.6","v10.4.7","v10.4.8","v10.4.9"],"fixed":["10.4.18"]},{"ecosystem":"Packagist","name":"typo3/cms-core","sources":[{"name":"OSV · GHSA-rgcg-28xm-8mmw","url":"https://osv.dev/vulnerability/GHSA-rgcg-28xm-8mmw"}],"ranges":[{"events":[{"introduced":"11.0.0"},{"fixed":"11.3.1"}],"type":"ECOSYSTEM"}],"versions":["v11.0.0","v11.1.0","v11.1.1","v11.2.0","v11.3.0"],"fixed":["11.3.1"]},{"ecosystem":"Packagist","name":"typo3/cms","sources":[{"name":"OSV · GHSA-rgcg-28xm-8mmw","url":"https://osv.dev/vulnerability/GHSA-rgcg-28xm-8mmw"}],"ranges":[{"events":[{"introduced":"10.0.0"},{"fixed":"10.4.18"}],"type":"ECOSYSTEM"}],"versions":["v10.0.0","v10.1.0","v10.2.0","v10.2.1","v10.2.2","v10.3.0","v10.4.0","v10.4.1","v10.4.10","v10.4.11","v10.4.12","v10.4.13","v10.4.14","v10.4.15","v10.4.16","v10.4.17","v10.4.2","v10.4.3","v10.4.4","v10.4.5","v10.4.6","v10.4.7","v10.4.8","v10.4.9"],"fixed":["10.4.18"]},{"ecosystem":"Packagist","name":"typo3/cms","sources":[{"name":"OSV · GHSA-rgcg-28xm-8mmw","url":"https://osv.dev/vulnerability/GHSA-rgcg-28xm-8mmw"}],"ranges":[{"events":[{"introduced":"11.0.0"},{"fixed":"11.3.1"}],"type":"ECOSYSTEM"}],"versions":["v11.0.0","v11.1.0","v11.1.1","v11.2.0","v11.3.0"],"fixed":["11.3.1"]},{"ecosystem":"Packagist","name":"typo3/cms","sources":[{"name":"OSV · GHSA-rgcg-28xm-8mmw","url":"https://osv.dev/vulnerability/GHSA-rgcg-28xm-8mmw"}],"ranges":[{"events":[{"introduced":"9.0.0"},{"fixed":"9.5.28"}],"type":"ECOSYSTEM"}],"versions":["v9.0.0","v9.1.0","v9.2.0","v9.2.1","v9.3.0","v9.3.1","v9.3.2","v9.3.3","v9.4.0","v9.5.0","v9.5.1","v9.5.10","v9.5.11","v9.5.12","v9.5.13","v9.5.14","v9.5.15","v9.5.16","v9.5.17","v9.5.18","v9.5.19","v9.5.2","v9.5.20","v9.5.21","v9.5.22","v9.5.23","v9.5.24","v9.5.25","v9.5.26","v9.5.27","v9.5.3","v9.5.4","v9.5.5","v9.5.6","v9.5.7","v9.5.8","v9.5.9"],"fixed":["9.5.28"]}],"sourceAffected":[],"references":["https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-rgcg-28xm-8mmw","https://nvd.nist.gov/vuln/detail/CVE-2021-32669","https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-32669.yaml","https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-32669.yaml","https://typo3.org/security/advisory/typo3-core-sa-2021-011"],"sources":[{"name":"OSV","id":"GHSA-rgcg-28xm-8mmw","modified":"2026-09-10T03:49:15.519945536Z","url":"https://osv.dev/vulnerability/GHSA-rgcg-28xm-8mmw"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N","score":6.4}],"products":[],"remediation":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T18:20:33.032Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}