{"cve":"CVE-2005-4621","nvd":{"published":"2005-12-31T05:00:00.000","modified":"2026-06-16T22:19:07.607","status":"Modified","description":"Cross-site scripting (XSS) vulnerability in the editavatar page in vBulletin 3.5.1 allows remote attackers to inject arbitrary web script or HTML via a URL in the remote avatar url field, in which the URL generates a parsing error, and possibly requiring a trailing extension such as .jpg.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://pridels0.blogspot.com/2005/11/vbulletin-351-xss-vuln.html","http://www.osvdb.org/21373","http://www.securityfocus.com/bid/16128","http://www.vbulletin.com/forum/showthread.php?t=166391","http://pridels0.blogspot.com/2005/11/vbulletin-351-xss-vuln.html"],"products":["jelsoft:vbulletin"],"source":"nvd","synced_at":"2026-10-19T19:40:09.211843075+00:00"},"epss":{"cve":"CVE-2005-4621","score":0.01177,"percentile":0.67636,"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."]}