CVE-2012-4201
CVE-2012-4201 is a medium-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 2.0 base score 4.3)
- EPSS exploit prediction: 3% (86th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Mozilla Firefox
- Published:
- Last modified:
Description
The evalInSandbox implementation in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 uses an incorrect context during the handling of JavaScript code that sets the location.href property, which allows remote attackers to conduct cross-site scripting (XSS) attacks or read arbitrary files by leveraging a sandboxed add-on.
Frequently asked questions
- What is CVE-2012-4201?
- The evalInSandbox implementation in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 uses an incorrect context during the handling of JavaScript code that sets the location.href property, which allows remote attackers to conduct cross-site scripting (XSS) attacks or read arbitrary files by leveraging a sandboxed add-on.
- How severe is CVE-2012-4201?
- CVE-2012-4201 has a CVSS 2.0 base score of 4.3, rated medium severity.
- Is CVE-2012-4201 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2012-4201?
- CVE-2012-4201 primarily affects Mozilla Firefox. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2012-4201?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2012-4201 published?
- CVE-2012-4201 was published on 2012-11-21 and last updated on 2026-06-16.
References
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00022.html
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00090.html
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00092.html
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00093.html
- http://osvdb.org/87594
- http://rhn.redhat.com/errata/RHSA-2012-1482.html
- http://rhn.redhat.com/errata/RHSA-2012-1483.html
- http://secunia.com/advisories/51359
- http://secunia.com/advisories/51360
- http://secunia.com/advisories/51369
- http://secunia.com/advisories/51370
- http://secunia.com/advisories/51381
- http://secunia.com/advisories/51434
- http://secunia.com/advisories/51439
- http://secunia.com/advisories/51440
- http://www.debian.org/security/2012/dsa-2583
- http://www.debian.org/security/2012/dsa-2584
- http://www.debian.org/security/2012/dsa-2588
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:173
- http://www.mozilla.org/security/announce/2012/mfsa2012-93.html
- http://www.securityfocus.com/bid/56618
- http://www.ubuntu.com/usn/USN-1636-1
- http://www.ubuntu.com/usn/USN-1638-1
- http://www.ubuntu.com/usn/USN-1638-2
- http://www.ubuntu.com/usn/USN-1638-3
- https://bugzilla.mozilla.org/show_bug.cgi?id=747607
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80171
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15995
Affected products (27)
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:opensuse:12.1:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:opensuse:12.2:*:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_desktop:10:sp4:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_desktop:11:sp2:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_server:11:sp2:*:*:*:vmware:*:*
- cpe:2.3:o:suse:linux_enterprise_software_development_kit:10:sp4:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp2:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:6.3:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
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