CVE-2008-1234: Mozilla Firefox

Medium severity, CVSS 4.3. EPSS: 2.8% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in Mozilla Firefox before 2.0.0.13, Thunderbird before 2.0.0.13, and SeaMonkey before 1.1.9 allows remote attackers to inject arbitrary web script or HTML via event handlers, aka "Universal XSS using event handlers."

Affected products

• Mozilla Firefox: up to and including 2.0.0.12
• Mozilla Seamonkey: up to and including 1.1.8
• Mozilla Thunderbird: up to and including 2.0.0.12

Published 2008-03-27. Last modified 2026-06-16.