{"id":"GHSA-x79j-wgqv-g8h2","summary":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in typo3/cms-form","details":"\n### Problem\nIt has been discovered that the Form Designer backend module of the Form Framework is vulnerable to cross-site scripting. A valid backend user account with access to the form module is needed to exploit this vulnerability.\n\n### Solution\nUpdate to TYPO3 versions 10.4.14 or 11.1.1 that fix the problem described.\n\n### Credits\nThanks to Richie Lee who reported this issue and to TYPO3 framework merger Andreas Fernandez who fixed the issue.\n\n### References\n* [TYPO3-CORE-SA-2021-004](https://typo3.org/security/advisory/typo3-core-sa-2021-004)","aliases":["BIT-typo3-2021-21358","CVE-2021-21358"],"modified":"2026-07-08T06:29:07.138120904Z","published":"2021-03-23T01:54:06Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2021-03-23T01:42:00Z","nvd_published_at":"2021-03-23T02:15:00Z","cwe_ids":["CWE-79"],"severity":"MODERATE"},"references":[{"type":"WEB","url":"https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x79j-wgqv-g8h2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21358"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-21358.yaml"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-21358.yaml"},{"type":"WEB","url":"https://packagist.org/packages/typo3/cms-form"},{"type":"WEB","url":"https://typo3.org/security/advisory/typo3-core-sa-2021-004"}],"affected":[{"package":{"name":"typo3/cms-form","ecosystem":"Packagist","purl":"pkg:composer/typo3/cms-form"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10.2.0"},{"fixed":"10.4.14"}]}],"versions":["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","v10.4.2","v10.4.3","v10.4.4","v10.4.5","v10.4.6","v10.4.7","v10.4.8","v10.4.9"],"database_specific":{"last_known_affected_version_range":"\u003c= 10.4.13","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-x79j-wgqv-g8h2/GHSA-x79j-wgqv-g8h2.json"}},{"package":{"name":"typo3/cms-form","ecosystem":"Packagist","purl":"pkg:composer/typo3/cms-form"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11.0.0"},{"fixed":"11.1.1"}]}],"versions":["v11.0.0","v11.1.0"],"database_specific":{"last_known_affected_version_range":"\u003c= 11.1.0","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-x79j-wgqv-g8h2/GHSA-x79j-wgqv-g8h2.json"}},{"package":{"name":"typo3/cms-core","ecosystem":"Packagist","purl":"pkg:composer/typo3/cms-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0"},{"fixed":"10.4.14"}]}],"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","v10.4.2","v10.4.3","v10.4.4","v10.4.5","v10.4.6","v10.4.7","v10.4.8","v10.4.9"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-x79j-wgqv-g8h2/GHSA-x79j-wgqv-g8h2.json"}},{"package":{"name":"typo3/cms-core","ecosystem":"Packagist","purl":"pkg:composer/typo3/cms-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11.0.0"},{"fixed":"11.1.1"}]}],"versions":["v11.0.0","v11.1.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-x79j-wgqv-g8h2/GHSA-x79j-wgqv-g8h2.json"}},{"package":{"name":"typo3/cms","ecosystem":"Packagist","purl":"pkg:composer/typo3/cms"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0"},{"fixed":"10.4.14"}]}],"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","v10.4.2","v10.4.3","v10.4.4","v10.4.5","v10.4.6","v10.4.7","v10.4.8","v10.4.9"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-x79j-wgqv-g8h2/GHSA-x79j-wgqv-g8h2.json"}},{"package":{"name":"typo3/cms","ecosystem":"Packagist","purl":"pkg:composer/typo3/cms"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"11.0.0"},{"fixed":"11.1.1"}]}],"versions":["v11.0.0","v11.1.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-x79j-wgqv-g8h2/GHSA-x79j-wgqv-g8h2.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C"}]}