CVE-2007-6589: Mozilla Firefox

Medium severity, CVSS 4.3. EPSS: 1.1% chance of exploitation in the next 30 days.

The jar protocol handler in Mozilla Firefox before 2.0.0.10 and SeaMonkey before 1.1.7 does not update the origin domain when retrieving the inner URL parameter yields an HTTP redirect, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a jar: URI, a different vulnerability than CVE-2007-5947.

Affected products

• Mozilla Firefox: up to and including 2.0.0.9
• Mozilla Seamonkey: up to and including 1.1.6

Published 2007-12-28. Last modified 2026-06-16.