CVE-2012-4210
The Style Inspector in Mozilla Firefox before 17.0 and Firefox ESR 10.x before 10.0.11 does not properly restrict the context of HTML markup and Cascading Style Sheets (CSS) token sequences, which allows user-assisted remote attackers to execute…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Style Inspector in Mozilla Firefox before 17.0 and Firefox ESR 10.x before 10.0.11 does not properly restrict the context of HTML markup and Cascading Style Sheets (CSS) token sequences, which allows user-assisted remote attackers to execute arbitrary JavaScript code with chrome privileges via a crafted stylesheet.
- CVSS 2.0
- 9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
- EPSS
- 3.53% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- mozilla/firefox
- Source
- cve@mitre.org
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/msg00093.html
- http://rhn.redhat.com/errata/RHSA-2012-1482.html
- http://secunia.com/advisories/51359
- http://secunia.com/advisories/51369
- http://secunia.com/advisories/51434
- http://secunia.com/advisories/51439
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:173
- http://www.mozilla.org/security/announce/2012/mfsa2012-104.htmlVendor Advisory
- http://www.palemoon.org/releasenotes-ng.shtml
- http://www.securityfocus.com/bid/56646
- 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=796866
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80182
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16833
- 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/msg00093.html
- http://rhn.redhat.com/errata/RHSA-2012-1482.html
- http://secunia.com/advisories/51359
- http://secunia.com/advisories/51369
- http://secunia.com/advisories/51434
- http://secunia.com/advisories/51439
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:173
- http://www.mozilla.org/security/announce/2012/mfsa2012-104.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.