{"id":"CVE-2011-4628","aliases":["DSA-2289-1","EUVD-2022-1663","GHSA-79gv-5cgx-x6rx"],"status":"published","title":"Typo3 Authentication Bypass","description":"TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to bypass authentication mechanisms in the backend through a crafted request.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01645,"percentile":0.7659,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287"],"published":"2011-08-07T00:00:00Z","modified":"2026-06-16T23:35:10Z","fixes":[{"ecosystem":"Packagist","package":"typo3/cms","fixed_in":["4.3.12","4.4.9","4.5.4"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.12"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.4.9"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.5.0"},{"fixed":"4.5.4"}]}]},{"source":"osv","ecosystem":"Debian:5.0","package":"typo3-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.5-1+lenny8"}]}],"versions":["4.2.5-1","4.2.5-1+lenny1","4.2.5-1+lenny2","4.2.5-1+lenny3","4.2.5-1+lenny4","4.2.5-1+lenny5","4.2.5-1+lenny6"],"bundled":12},{"source":"osv","ecosystem":"Debian:6.0","package":"typo3-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.9+dfsg1-1+squeeze1"}]}],"versions":["4.3.9+dfsg1-1"],"bundled":12},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.12"}]}]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.4.9"}]}]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.5.0"},{"fixed":"4.5.4"}]}]}],"products":[{"vendor":"typo3","product":"typo3"}],"references":[{"url":"https://security-tracker.debian.org/tracker/CVE-2011-4628","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","web"]},{"url":"https://typo3.org/security/advisory/typo3-core-sa-2011-001/#Authentication_Delay_Bypass","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4628","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-79gv-5cgx-x6rx"},{"url":"https://github.com/TYPO3/typo3","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2011-4628","description":"TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to bypass authentication mechanisms in the backend through a crafted request.","status":"published","published":"2019-11-06T16:22:56Z","modified":"2024-08-07T00:09:19.403Z","updated_at":"2026-11-02T14:35:37.989579Z"}],"euvd":[{"id":"EUVD-2022-1663","description":"TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to bypass authentication mechanisms in the backend through a crafted request.","status":"published","published":"2019-11-06T16:22:56Z","modified":"2024-08-07T00:09:19Z","updated_at":"2026-11-03T01:39:48.540824Z"}],"ghsa":[{"id":"GHSA-79gv-5cgx-x6rx","title":"Typo3 Authentication Bypass","description":"TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to bypass authentication mechanisms in the backend through a crafted request.","status":"published","published":"2022-04-22T00:24:10Z","modified":"2024-01-12T20:43:34Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:37:30.812736Z"}],"nvd":[{"id":"CVE-2011-4628","description":"TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to bypass authentication mechanisms in the backend through a crafted request.","status":"published","published":"2019-11-06T17:15:10.753Z","modified":"2026-06-16T23:35:10.47Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:02:12.945371Z"}],"osv":[{"id":"GHSA-79gv-5cgx-x6rx","title":"Typo3 Authentication Bypass","description":"TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to bypass authentication mechanisms in the backend through a crafted request.","status":"published","published":"2022-04-22T00:24:10Z","modified":"2024-01-12T21:11:35.715679Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:46:40.657155Z"},{"id":"DSA-2289-1","title":"typo3-src - several","status":"published","published":"2011-08-07T00:00:00Z","modified":"2026-03-09T01:20:53.445246Z","updated_at":"2026-11-02T15:46:15.108335Z"}]}}