CVE-2008-0418: Mozilla Firefox

Medium severity, CVSS 4.3. EPSS: 8.6% chance of exploitation in the next 30 days.

Directory traversal vulnerability in Mozilla Firefox before 2.0.0.12, Thunderbird before 2.0.0.12, and SeaMonkey before 1.1.8, when using "flat" addons, allows remote attackers to read arbitrary Javascript, image, and stylesheet files via the chrome: URI scheme, as demonstrated by stealing session information from sessionstore.js.

Affected products

• Mozilla Firefox: up to and including 2.0.0.11
• Mozilla Seamonkey: up to and including 1.1.7
• Mozilla Thunderbird: up to and including 2.0.0.11

Published 2008-02-08. Last modified 2026-06-16.