CVE-2012-5837: Mozilla Firefox

Medium severity, CVSS 6.8. EPSS: 2.3% chance of exploitation in the next 30 days.

The Web Developer Toolbar in Mozilla Firefox before 17.0 executes script with chrome privileges, which allows user-assisted remote attackers to conduct cross-site scripting (XSS) attacks via a crafted string.

Affected products

• Mozilla Firefox: up to and including 16.0.2; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2012-11-21. Last modified 2026-06-16.