{"id":"CVE-2009-3012","aliases":["EUVD-2009-2996","GHSA-mpq2-pcrq-r69f"],"status":"published","title":"Mozilla Firefox 3.0.13 and earlier, 3.5, 3.6 a1 pre, and 3.7 a1 pre does not properly block data:...","description":"Mozilla Firefox 3.0.13 and earlier, 3.5, 3.6 a1 pre, and 3.7 a1 pre does not properly block data: URIs in Location headers in HTTP responses, which allows remote attackers to conduct cross-site scripting (XSS) attacks via vectors related to (1) injecting a Location header that contains JavaScript sequences in a data:text/html URI or (2) entering a data:text/html URI with JavaScript sequences when specifying the content of a Location header.  NOTE: the JavaScript executes outside of the context of the HTTP site.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00827,"percentile":0.57689,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2009-08-31T16:00:00Z","modified":"2026-06-16T23:10:43Z","products":[{"vendor":"mozilla","product":"firefox"}],"references":[{"url":"http://websecurity.com.ua/3386/","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"http://websecurity.com.ua/3323/","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-3012"},{"url":"http://websecurity.com.ua/3323"},{"url":"http://websecurity.com.ua/3386"},{"url":"https://github.com/advisories/GHSA-mpq2-pcrq-r69f"}],"sources":{"cve":[{"id":"CVE-2009-3012","description":"Mozilla Firefox 3.0.13 and earlier, 3.5, 3.6 a1 pre, and 3.7 a1 pre does not properly block data: URIs in Location headers in HTTP responses, which allows remote attackers to conduct cross-site scripting (XSS) attacks via vectors related to (1) injecting a Location header that contains JavaScript sequences in a data:text/html URI or (2) entering a data:text/html URI with JavaScript sequences when specifying the content of a Location header.  NOTE: the JavaScript executes outside of the context of the HTTP site.","status":"published","published":"2009-08-31T16:00:00Z","modified":"2024-09-16T23:26:15.47Z","updated_at":"2026-11-02T14:33:24.10565Z"}],"euvd":[{"id":"EUVD-2009-2996","description":"Mozilla Firefox 3.0.13 and earlier, 3.5, 3.6 a1 pre, and 3.7 a1 pre does not properly block data: URIs in Location headers in HTTP responses, which allows remote attackers to conduct cross-site scripting (XSS) attacks via vectors related to (1) injecting a Location header that contains JavaScript sequences in a data:text/html URI or (2) entering a data:text/html URI with JavaScript sequences when specifying the content of a Location header.  NOTE: the JavaScript executes outside of the context of the HTTP site.","status":"published","published":"2009-08-31T16:00:00Z","modified":"2024-09-16T23:26:15Z","updated_at":"2026-11-03T00:54:50.852699Z"}],"ghsa":[{"id":"GHSA-mpq2-pcrq-r69f","title":"Mozilla Firefox 3.0.13 and earlier, 3.5, 3.6 a1 pre, and 3.7 a1 pre does not properly block data:...","description":"Mozilla Firefox 3.0.13 and earlier, 3.5, 3.6 a1 pre, and 3.7 a1 pre does not properly block data: URIs in Location headers in HTTP responses, which allows remote attackers to conduct cross-site scripting (XSS) attacks via vectors related to (1) injecting a Location header that contains JavaScript sequences in a data:text/html URI or (2) entering a data:text/html URI with JavaScript sequences when specifying the content of a Location header.  NOTE: the JavaScript executes outside of the context of the HTTP site.","status":"published","published":"2022-05-02T03:40:52Z","modified":"2025-04-09T04:14:41Z","cwes":["CWE-79"],"updated_at":"2026-11-02T15:01:01.075702Z"}],"nvd":[{"id":"CVE-2009-3012","description":"Mozilla Firefox 3.0.13 and earlier, 3.5, 3.6 a1 pre, and 3.7 a1 pre does not properly block data: URIs in Location headers in HTTP responses, which allows remote attackers to conduct cross-site scripting (XSS) attacks via vectors related to (1) injecting a Location header that contains JavaScript sequences in a data:text/html URI or (2) entering a data:text/html URI with JavaScript sequences when specifying the content of a Location header.  NOTE: the JavaScript executes outside of the context of the HTTP site.","status":"published","published":"2009-08-31T16:30:06.92Z","modified":"2026-06-16T23:10:43.373Z","cvss":[{"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":"2026-11-02T14:01:36.596719Z"}]}}