{"id":"CVE-2009-0256","aliases":["DSA-1711-1","EUVD-2022-4874","GHSA-q45q-5233-229p"],"status":"published","title":"Authentication library in TYPO3 vulnerable to session fixation","description":"Session fixation vulnerability in the authentication library in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 allows remote attackers to hijack web sessions via unspecified vectors related to (1) frontend and (2) backend authentication.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01793,"percentile":0.78564,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287","CWE-384"],"published":"2009-01-22T23:00:00Z","modified":"2026-06-16T23:04:36Z","fixes":[{"ecosystem":"Packagist","package":"typo3/cms","fixed_in":["4.0.10","4.1.8","4.2.4"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"last_affected":"4.0.9"},{"fixed":"4.0.10"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.1.0"},{"last_affected":"4.1.7"},{"fixed":"4.1.8"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2.0"},{"last_affected":"4.2.3"},{"fixed":"4.2.4"}]}]},{"source":"osv","ecosystem":"Debian:4.0","package":"typo3-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.2+debian-7"}]}],"bundled":4},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.0.10"}]}]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.1.0"},{"fixed":"4.1.8"}]}]},{"source":"osv","ecosystem":"Packagist","package":"typo3/cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2.0"},{"fixed":"4.2.4"}]}]}],"products":[{"vendor":"typo3","product":"typo3"}],"references":[{"url":"http://typo3.org/teams/security/security-bulletins/typo3-sa-2009-001/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://secunia.com/advisories/33617","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.debian.org/security/2009/dsa-1711","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/33376","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/48133","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://secunia.com/advisories/33679","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0256","tags":["advisory"]},{"url":"https://web.archive.org/web/20111210005350/http://www.securityfocus.com/bid/33376","tags":["web"]},{"url":"https://github.com/advisories/GHSA-q45q-5233-229p"},{"url":"https://github.com/TYPO3/typo3","tags":["package"]},{"url":"http://typo3.org/teams/security/security-bulletins/typo3-sa-2009-001","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2009-0256","description":"Session fixation vulnerability in the authentication library in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 allows remote attackers to hijack web sessions via unspecified vectors related to (1) frontend and (2) backend authentication.","status":"published","published":"2009-01-22T23:00:00Z","modified":"2024-08-07T04:24:18.513Z","updated_at":"2026-11-02T14:33:25.896677Z"}],"euvd":[{"id":"EUVD-2022-4874","description":"Session fixation vulnerability in the authentication library in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 allows remote attackers to hijack web sessions via unspecified vectors related to (1) frontend and (2) backend authentication.","status":"published","published":"2009-01-22T23:00:00Z","modified":"2024-08-07T04:24:18Z","updated_at":"2026-11-03T01:39:26.585153Z"}],"ghsa":[{"id":"GHSA-q45q-5233-229p","title":"Authentication library in TYPO3 vulnerable to session fixation","description":"Session fixation vulnerability in the authentication library in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 allows remote attackers to hijack web sessions via unspecified vectors related to (1) frontend and (2) backend authentication.","status":"published","published":"2022-05-02T03:13:51Z","modified":"2024-01-23T15:13:25Z","cwes":["CWE-287","CWE-384"],"updated_at":"2026-11-02T14:37:32.302254Z"}],"nvd":[{"id":"CVE-2009-0256","description":"Session fixation vulnerability in the authentication library in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 allows remote attackers to hijack web sessions via unspecified vectors related to (1) frontend and (2) backend authentication.","status":"published","published":"2009-01-22T23:30:04.437Z","modified":"2026-06-16T23:04:36.02Z","cvss":[{"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":"2026-11-02T14:01:33.417327Z"}],"osv":[{"id":"DSA-1711-1","title":"typo3-src - remote code execution","status":"published","published":"2009-01-26T00:00:00Z","modified":"2026-03-09T01:17:53.850288Z","updated_at":"2026-11-02T15:46:14.734124Z"},{"id":"GHSA-q45q-5233-229p","title":"Authentication library in TYPO3 vulnerable to session fixation","description":"Session fixation vulnerability in the authentication library in TYPO3 4.0.0 through 4.0.9, 4.1.0 through 4.1.7, and 4.2.0 through 4.2.3 allows remote attackers to hijack web sessions via unspecified vectors related to (1) frontend and (2) backend authentication.","status":"published","published":"2022-05-02T03:13:51Z","modified":"2024-01-23T15:41:35.219309Z","cwes":["CWE-287","CWE-384"],"updated_at":"2026-11-02T15:46:54.055966Z"}]}}