You are currently viewing a snapshot of www.mozilla.org taken on April 21, 2008. Most of this content is highly out of date (some pages haven't been updated since the project began in 1998) and exists for historical purposes only. If there are any pages on this archive site that you think should be added back to www.mozilla.org, please file a bug.

Skip to main content

You are here: Known Vulnerabilities in Mozilla Products (Firefox 2.0.0.13) > MFSA 2008-19

Mozilla Foundation Security Advisory 2008-19

Title: XUL popup spoofing variant (cross-tab popups)
Impact: High
Announced: March 25, 2008
Reporter: Chris Thomas
Products: Firefox, SeaMonkey

Fixed in: Firefox 2.0.0.13
  SeaMonkey 1.1.9

Description

Mozilla contributor Chris Thomas demonstrated that it was possible to have a background tab create a borderless XUL pop-up in front of the active tab in the user's browser. This technique could be used by an attacker to spoof form elements such as a login prompt for a site opened in a different tab and steal the user's login credentials for that site.

References