CVE-2012-1956

Description

Mozilla Firefox before 15.0, Thunderbird before 15.0, and SeaMonkey before 2.12 do not prevent use of the Object.defineProperty method to shadow the location object (aka window.location), which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via vectors involving a plugin.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.74% Top 30%
Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory mozilla.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16367 vdb entry signature
http://rhn.redhat.com/errata/RHSA-2012-1351.html vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=756719
http://www.securityfocus.com/bid/55260 vdb entry
http://www.mozilla.org/security/announce/2012/mfsa2012-59.html vendor advisory
http://www.ubuntu.com/usn/USN-1548-1 vendor advisory
http://www.ubuntu.com/usn/USN-1548-2 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00014.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00011.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00028.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2012-1956?
CVE-2012-1956 has been scored as a medium severity vulnerability.
How to fix CVE-2012-1956?
To fix CVE-2012-1956, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-1956 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2012-1956 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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