{"cve":"CVE-2011-2990","nvd":{"published":"2011-08-18T18:55:01.913","modified":"2026-06-16T23:32:22.980","status":"Modified","description":"The implementation of Content Security Policy (CSP) violation reports in Mozilla Firefox 4.x through 5, SeaMonkey 2.x before 2.3, and possibly other products does not remove proxy-authorization credentials from the listed request headers, which allows attackers to obtain sensitive information by reading a report, related to incorrect host resolution that occurs with certain redirects.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-255"],"references":["http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00023.html","http://www.mozilla.org/security/announce/2011/mfsa2011-29.html","http://www.mozilla.org/security/announce/2011/mfsa2011-33.html","https://bugzilla.mozilla.org/show_bug.cgi?id=664983","https://bugzilla.mozilla.org/show_bug.cgi?id=679588"],"products":["mozilla:firefox","mozilla:seamonkey"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-2990","score":0.00969,"percentile":0.61873,"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."]}