{"cve":"CVE-2009-4255","nvd":{"published":"2009-12-10T01:30:00.437","modified":"2026-06-16T23:13:20.543","status":"Modified","description":"Cross-site scripting (XSS) vulnerability in the You!Hostit! template 1.0.1 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the created_by_alias parameter in index.php.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-79"],"references":["http://secunia.com/advisories/37601","http://www.exploit-db.com/exploits/10301","https://exchange.xforce.ibmcloud.com/vulnerabilities/54570","http://secunia.com/advisories/37601","http://www.exploit-db.com/exploits/10301"],"products":["youjoomla:you\\!hostit\\!"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-4255","score":0.01062,"percentile":0.6461,"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."]}