{"id":"CVE-2021-32669","aliases":["BIT-typo3-2021-32669","GHSA-rgcg-28xm-8mmw"],"url":"https://o3.security/vulnerability/CVE-2021-32669","summary":"Cross-Site Scripting in Backend Grid View","details":"TYPO3 is an open source PHP based web content management system. Versions 9.0.0 through 9.5.28, 10.0.0 through 10.4.17, and 11.0.0 through 11.3.0 have a cross-site scripting vulnerability. When settings for _backend layouts_ are not properly encoded, the corresponding grid view is vulnerable to persistent cross-site scripting. A valid backend user account is needed to exploit this vulnerability. TYPO3 versions 9.5.29, 10.4.18, 11.3.1 contain a patch for this vulnerability.","published":"2021-07-20T16:15:07.793Z","modified":"2026-08-27T03:49:33.110637587Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Packagist","name":"typo3/cms-core","fixedVersion":"8.7.41"},{"ecosystem":"Packagist","name":"typo3/cms-core","fixedVersion":"9.5.28"},{"ecosystem":"Packagist","name":"typo3/cms-core","fixedVersion":"10.4.18"},{"ecosystem":"Packagist","name":"typo3/cms-core","fixedVersion":"11.3.1"},{"ecosystem":"Packagist","name":"typo3/cms","fixedVersion":"10.4.18"},{"ecosystem":"Packagist","name":"typo3/cms","fixedVersion":"11.3.1"},{"ecosystem":"Packagist","name":"typo3/cms","fixedVersion":"9.5.28"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-rgcg-28xm-8mmw"},{"type":"ADVISORY","url":"https://typo3.org/security/advisory/typo3-core-sa-2021-011"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T03:49:33.110637587Z"}}