Vulnerability Note VU#319464

The Wizz RSS Reader chrome access vulnerability

Original Release date: 16 Apr 2007 | Last revised: 17 Apr 2007


The Wizz RSS Reader contains a vulnerability that may allow an attacker to take any action that Mozlla Firefox can.


The Mozilla Firefox user interface components outside of the content area are created using chrome. This includes toolbars, menu bars, progress bars, and window title bars. Chrome provides content, locale, and skin information for the user interface. The Wizz RSS reader is an extension to Mozilla Firefox that searches and displays RSS feeds.

The Wizz RSS Reader reader contains a vulnerability. This vulnerability occurs because The Wizz allows javascript in an RSS feed's DOM to be executed in the context of the Wizz RSS Reader's chrome window.

Note that to exploit this vulnerability an attacker would have to convince a user to load a specially crafted RSS feed using The Wizz.


A remote unauthenticated attacker may be able to take any action that Mozilla Firefox is capable of performing. This includes downloading arbitrary files, redirecting browser requests, and access stored passwords.


Version 2.1.9 of the Wizz RSS reader has been released to address this vulnerability. Users are encouraged to update to version 2.1.9 as soon as possible.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Wizz ComputersAffected23 Mar 200716 Apr 2007
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A



Thanks to the N-CIRT Lab for reporting this vulnerability.

This document was written by Ryan Giobbi.

Other Information

  • CVE IDs: Unknown
  • Date Public: 13 Apr 2007
  • Date First Published: 16 Apr 2007
  • Date Last Updated: 17 Apr 2007
  • Severity Metric: 3.27
  • Document Revision: 20


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