CVE-2006-1733: Mozilla Firefox

Medium severity, CVSS 6.8. EPSS: 5.2% chance of exploitation in the next 30 days.

Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 does not properly protect the compilation scope of privileged built-in XBL bindings, which allows remote attackers to execute arbitrary code via the (1) valueOf.call or (2) valueOf.apply methods of an XBL binding, or (3) "by inserting an XBL method into the DOM's document.body prototype chain."

Affected products

• Mozilla Firefox: up to and including 1.0.7; version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; …
• Mozilla Mozilla Suite: up to and including 1.7.12; version 1.7.6 only; version 1.7.7 only; version 1.7.8 only; version 1.7.10 only; version 1.7.11 only
• Mozilla Seamonkey: up to and including 1.0; version 1.0 only
• Mozilla Thunderbird: up to and including 1.0.7; version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; …

Published 2006-04-14. Last modified 2026-06-16.