{"cve":"CVE-2011-0508","nvd":{"published":"2011-01-20T19:00:10.817","modified":"2026-06-16T23:27:31.813","status":"Modified","description":"Cross-site scripting (XSS) vulnerability in system/modules/comments/Comments.php in Contao CMS 2.9.2, and possibly other versions before 2.9.3, allows remote attackers to inject arbitrary web script or HTML via the HTTP X_FORWARDED_FOR header, which is stored by system/libraries/Environment.php but not properly handled by a comments action to main.php.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-79"],"references":["http://dev.contao.org/issues/2751","http://secunia.com/advisories/42899","http://www.contao.org/changelog.html","http://www.contao.org/news/items/contao-2_9_3.html","http://www.osvdb.org/70440"],"products":["contao:contao_cms"],"source":"nvd","synced_at":"2026-10-19T19:57:56.749847046+00:00"},"epss":{"cve":"CVE-2011-0508","score":0.0192,"percentile":0.79901,"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."]}