6.8CVSSMEDIUM
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 Vector Breakdown
Exploitability
AV:NAccess VectorNetwork
AC:MAccess ComplexityMedium
Au:NAuthenticationNone
Impact
C:PConfidentialityPartial
I:PIntegrityPartial
A:PAvailabilityPartial
Weaknesses
Affected Products
Attack Graph
Products CVE Techniques Tactics
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Exploitability
Official Patch Available
MITRE ATT&CK
1 technique Initial Access
References
http://rhn.redhat.com/errata/RHSA-2015-0046.html
rhn.redhat.com
http://secunia.com/advisories/62242
secunia.com
http://www.securitytracker.com/id/1031533
securitytracker.com
and 36 more references View all →
Timeline
Published
Jan 14, 2015
Last Updated
May 6, 2026
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