{"cve":"CVE-2011-5251","nvd":{"published":"2012-12-31T20:55:04.673","modified":"2026-06-16T23:36:13.500","status":"Modified","description":"Open redirect vulnerability in forum/login.php in vBulletin 4.1.3 and earlier allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via the url parameter in a lostpw action.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://www.vbulletin.com/forum/showthread.php/381014-Potential-Phishing-Vector?p=2166441","http://www.vbulletin.com/forum/showthread.php/381014-Potential-Phishing-Vector?p=2166441"],"products":["vbulletin:vbulletin"],"source":"nvd","synced_at":"2026-10-19T20:27:27.940201468+00:00"},"epss":{"cve":"CVE-2011-5251","score":0.01533,"percentile":0.74807,"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."]}