{"cve":"CVE-2014-8638","nvd":{"published":"2015-01-14T11:59:07.163","modified":"2026-06-17T00:17:04.357","status":"Modified","description":"The navigator.sendBeacon implementation in Mozilla Firefox before 35.0, Firefox ESR 31.x before 31.4, Thunderbird before 31.4, and SeaMonkey before 2.32 omits the CORS Origin header, which allows remote attackers to bypass intended CORS access-control checks and conduct cross-site request forgery (CSRF) attacks via a crafted web site.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-352"],"references":["http://linux.oracle.com/errata/ELSA-2015-0046.html","http://linux.oracle.com/errata/ELSA-2015-0047.html","http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00014.html","http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00032.html","http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00033.html"],"products":["mozilla:firefox","mozilla:firefox_esr","mozilla:seamonkey","mozilla:thunderbird"],"source":"nvd","synced_at":"2026-10-19T20:35:35.528235705+00:00"},"epss":{"cve":"CVE-2014-8638","score":0.0102,"percentile":0.63419,"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."]}