{"id":"GHSA-8c25-vj2w-p72j","aliases":[],"status":"published","title":"TYPO3 Cross-Site Scripting in Frontend User Login","description":"Failing to properly encode user input, login status display is vulnerable to cross-site scripting in the website frontend. A valid user account is needed in order to exploit this vulnerability - either a backend user or a frontend user having the possibility to modify their user profile.\n\nTemplate patterns that are affected are\n\n- ###FEUSER_[fieldName]### using system extension felogin\n- \u003c!--###USERNAME###--\u003e for regular frontend rendering (pattern can be defined individually using TypoScript setting config.USERNAME_substToken)","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2024-05-30T14:59:25Z","modified":"2024-12-05T05:43:55Z","fixes":[{"ecosystem":"Packagist","package":"typo3/cms-core","fixed_in":["8.7.21","9.5.2","7.6.32"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.7.21"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0"},{"fixed":"9.5.2"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.1.0"},{"fixed":"7.6.32"}]}]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0"},{"fixed":"8.7.21"}]}],"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","v8.7.7","v8.7.8","v8.7.9"]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0"},{"fixed":"9.5.2"}]}],"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"]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.1.0"},{"fixed":"7.6.32"}]}]}],"references":[{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2018-12-11-3.yaml","tags":["web"]},{"url":"https://typo3.org/security/advisory/typo3-core-sa-2018-008","tags":["web"]},{"url":"https://github.com/advisories/GHSA-8c25-vj2w-p72j"},{"url":"https://github.com/TYPO3-CMS/core","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-8c25-vj2w-p72j","title":"TYPO3 Cross-Site Scripting in Frontend User Login","description":"Failing to properly encode user input, login status display is vulnerable to cross-site scripting in the website frontend. A valid user account is needed in order to exploit this vulnerability - either a backend user or a frontend user having the possibility to modify their user profile.\n\nTemplate patterns that are affected are\n\n- ###FEUSER_[fieldName]### using system extension felogin\n- \u003c!--###USERNAME###--\u003e for regular frontend rendering (pattern can be defined individually using TypoScript setting config.USERNAME_substToken)\n ","status":"published","published":"2024-05-30T14:59:25Z","modified":"2024-05-30T14:59:36Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:37:52.2286Z"}],"osv":[{"id":"GHSA-8c25-vj2w-p72j","title":"TYPO3 Cross-Site Scripting in Frontend User Login","description":"Failing to properly encode user input, login status display is vulnerable to cross-site scripting in the website frontend. A valid user account is needed in order to exploit this vulnerability - either a backend user or a frontend user having the possibility to modify their user profile.\n\nTemplate patterns that are affected are\n\n- ###FEUSER_[fieldName]### using system extension felogin\n- \u003c!--###USERNAME###--\u003e for regular frontend rendering (pattern can be defined individually using TypoScript setting config.USERNAME_substToken)\n ","status":"published","published":"2024-05-30T14:59:25Z","modified":"2024-12-05T05:43:55.1387Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:42.077781Z"}]}}