{"id":"GHSA-4j77-gg36-9864","aliases":["BIT-typo3-2020-11065","CVE-2020-11065"],"title":"Cross-Site Scripting in TYPO3 CMS Link Handling","description":"It has been discovered that link tags generated by `typolink` functionality are vulnerable to cross-site scripting - properties being assigned as HTML attributes have not been parsed correctly.\n\nUpdate to TYPO3 versions 9.5.17 or 10.4.2 that fix the problem described.\n\n### References\n* https://typo3.org/security/advisory/typo3-core-sa-2020-003","severity":"medium","score":5.4,"published":"2020-05-13T23:18:12.000Z","modified":"2026-07-08T06:00:36.860Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"typo3/cms-core","ranges":[{"events":[{"introduced":"10.0.0"},{"fixed":"10.4.2"}],"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"],"fixed":["10.4.2"]},{"ecosystem":"Packagist","name":"typo3/cms-core","ranges":[{"events":[{"introduced":"9.0.0"},{"fixed":"9.5.17"}],"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","v9.5.2","v9.5.3","v9.5.4","v9.5.5","v9.5.6","v9.5.7","v9.5.8","v9.5.9"],"fixed":["9.5.17"]},{"ecosystem":"Packagist","name":"typo3/cms","ranges":[{"events":[{"introduced":"10.0.0"},{"fixed":"10.4.2"}],"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"],"fixed":["10.4.2"]},{"ecosystem":"Packagist","name":"typo3/cms","ranges":[{"events":[{"introduced":"9.0.0"},{"fixed":"9.5.17"}],"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","v9.5.2","v9.5.3","v9.5.4","v9.5.5","v9.5.6","v9.5.7","v9.5.8","v9.5.9"],"fixed":["9.5.17"]}],"references":["https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4j77-gg36-9864","https://nvd.nist.gov/vuln/detail/CVE-2020-11065","https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-11065.yaml","https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-11065.yaml","https://typo3.org/security/advisory/typo3-core-sa-2020-003"],"sources":[{"name":"OSV","id":"GHSA-4j77-gg36-9864","modified":"2026-07-08T06:00:36.860335176Z","url":"https://osv.dev/vulnerability/GHSA-4j77-gg36-9864"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4}]}