CVE-2016-1949

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-02-13 · updated 2026-06-17
Weakness: CWE-264

Description

Mozilla Firefox before 44.0.2 does not properly restrict the interaction between Service Workers and plugins, which allows remote attackers to bypass the Same Origin Policy via a crafted web site that triggers spoofed responses to requests that use NPAPI, as demonstrated by a request for a crossdomain.xml file.

Affected products

Mozilla Firefox: through 44.0.1

References

http://lists.opensuse.org/opensuse-updates/2016-02/msg00102.html
http://lists.opensuse.org/opensuse-updates/2016-02/msg00142.html
http://www.mozilla.org/security/announce/2016/mfsa2016-13.html
http://www.securitytracker.com/id/1035007
http://www.ubuntu.com/usn/USN-2893-1
https://bugzilla.mozilla.org/show_bug.cgi?id=1245724
https://security.gentoo.org/glsa/201605-06
http://lists.opensuse.org/opensuse-updates/2016-02/msg00102.html
http://lists.opensuse.org/opensuse-updates/2016-02/msg00142.html
http://www.mozilla.org/security/announce/2016/mfsa2016-13.html
http://www.securitytracker.com/id/1035007
http://www.ubuntu.com/usn/USN-2893-1

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