CVE-2015-7197

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-11-05 · updated 2026-06-17
Weakness: CWE-264

Description

Mozilla Firefox before 42.0 and Firefox ESR 38.x before 38.4 improperly control the ability of a web worker to create a WebSocket object, which allows remote attackers to bypass intended mixed-content restrictions via crafted JavaScript code.

Affected products

Mozilla Firefox: through 41.0.2; 38.0, 38.0.1, 38.0.5, 38.1.0, 38.1.1, 38.2.0 (+2)

References

http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00013.html
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html
http://lists.opensuse.org/opensuse-updates/2015-12/msg00037.html
http://lists.opensuse.org/opensuse-updates/2015-12/msg00049.html
http://rhn.redhat.com/errata/RHSA-2015-1982.html
http://rhn.redhat.com/errata/RHSA-2015-2519.html
http://www.debian.org/security/2015/dsa-3393
http://www.debian.org/security/2015/dsa-3410
http://www.mozilla.org/security/announce/2015/mfsa2015-132.html

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