{"cve":"CVE-2009-4151","nvd":{"published":"2009-12-02T16:30:00.670","modified":"2026-06-16T23:13:08.283","status":"Modified","description":"Session fixation vulnerability in html/Elements/SetupSessionCookie in Best Practical Solutions RT 3.0.0 through 3.6.9 and 3.8.x through 3.8.5 allows remote attackers to hijack web sessions by setting the session identifier via a manipulation that leverages \"HTTP access to the RT server,\" a related issue to CVE-2009-3585.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-287"],"references":["http://bestpractical.typepad.com/files/rt-3.0.0-session_fixation.v3.patch","http://bestpractical.typepad.com/files/rt-3.0.1-3.0.6-session_fixation.v3.patch","http://bestpractical.typepad.com/files/rt-3.0.7-3.6.1-session_fixation.v3.patch","http://bestpractical.typepad.com/files/rt-3.6.2-3.6.3-session_fixation.v3.patch","http://bestpractical.typepad.com/files/rt-3.6.4-3.6.9-session_fixation.v2.patch"],"products":["bestpractical:rt"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-4151","score":0.01838,"percentile":0.78968,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}