{"id":"CVE-2020-26227","aliases":["BIT-typo3-2020-26227","GHSA-vqqx-jw6p-q3rf"],"url":"https://o3.security/vulnerability/CVE-2020-26227","summary":"Cross-Site Scripting in Fluid view helpers","details":"TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.23 and 10.4.10 the system extension Fluid (typo3/cms-fluid) of the TYPO3 core is vulnerable to cross-site scripting passing user-controlled data as argument to Fluid view helpers. Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described.","published":"2020-11-23T21:15:12.047Z","modified":"2026-08-27T03:48:38.710601951Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Packagist","name":"typo3/cms-core","fixedVersion":"9.5.23"},{"ecosystem":"Packagist","name":"typo3/cms-core","fixedVersion":"10.4.10"},{"ecosystem":"Packagist","name":"typo3/cms-core","fixedVersion":"8.7.38"},{"ecosystem":"Packagist","name":"typo3/cms","fixedVersion":"10.4.10"},{"ecosystem":"Packagist","name":"typo3/cms","fixedVersion":"9.5.23"},{"ecosystem":"Packagist","name":"typo3/cms","fixedVersion":"8.7.38"}],"fix":null,"references":[{"type":"EVIDENCE","url":"https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-vqqx-jw6p-q3rf"},{"type":"EVIDENCE","url":"https://typo3.org/security/advisory/typo3-core-sa-2020-010"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T03:48:38.710601951Z"}}