VULNERABILITY INTELLIGENCE
CVE-2012-4210
CVSS score9.3 HIGH
EPSS probability3.53%
CISA KEVNot currently listed
Published2012-11-21
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:C/I:C/A:C
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.