{"id":"CVE-2011-3656","aliases":["EUVD-2011-3615","GHSA-pcv9-8f4w-qrgp"],"status":"published","title":"Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 3.6.24 and 4.x through 7...","description":"Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 3.6.24 and 4.x through 7 allows remote attackers to inject arbitrary web script or HTML via vectors involving HTTP 0.9 errors, non-default ports, and content-sniffing.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00761,"percentile":0.5565,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2021-06-02T16:31:22Z","modified":"2026-06-16T23:33:42Z","products":[{"vendor":"mozilla","product":"firefox"}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=667907","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-3656"},{"url":"https://github.com/advisories/GHSA-pcv9-8f4w-qrgp"}],"sources":{"cve":[{"id":"CVE-2011-3656","description":"Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 3.6.24 and 4.x through 7 allows remote attackers to inject arbitrary web script or HTML via vectors involving HTTP 0.9 errors, non-default ports, and content-sniffing.","status":"published","published":"2021-06-02T16:31:22Z","modified":"2024-08-06T23:46:01.304Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-3615","description":"Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 3.6.24 and 4.x through 7 allows remote attackers to inject arbitrary web script or HTML via vectors involving HTTP 0.9 errors, non-default ports, and content-sniffing.","status":"published","published":"2021-06-02T16:31:22Z","modified":"2024-08-06T23:46:01Z","updated_at":"2026-11-03T01:39:50.860626Z"}],"ghsa":[{"id":"GHSA-pcv9-8f4w-qrgp","title":"Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 3.6.24 and 4.x through 7...","description":"Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 3.6.24 and 4.x through 7 allows remote attackers to inject arbitrary web script or HTML via vectors involving HTTP 0.9 errors, non-default ports, and content-sniffing.","status":"published","published":"2022-04-22T00:24:28Z","modified":"2023-01-27T05:01:57Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:41:59.85242Z"}],"nvd":[{"id":"CVE-2011-3656","description":"Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 3.6.24 and 4.x through 7 allows remote attackers to inject arbitrary web script or HTML via vectors involving HTTP 0.9 errors, non-default ports, and content-sniffing.","status":"published","published":"2021-06-02T17:15:07.67Z","modified":"2026-06-16T23:33:42.173Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:02:12.945371Z"}]}}