XUL Popup Spoofing

XUL Popup Spoofing

Announced

May 30, 2007

Reporter

Chris Thomas

Impact

Low

Products

Firefox, SeaMonkey

Fixed in

• Firefox 1.5.0.12
• Firefox 2.0.0.4
• SeaMonkey 1.0.9
• SeaMonkey 1.1.2

Description

Chris Thomas demonstrated that XUL popups opened by web content could be placed outside the boundaries of the content area. This could be used to spoof or hide parts of the browser chrome such as the location bar.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=374570
• CVE-2007-2871