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TITLE:
Wizz RSS News Reader Extension for Firefox Code Execution
Vulnerability

SECUNIA ADVISORY ID:
SA36428

VERIFY ADVISORY:
http://secunia.com/advisories/36428/

DESCRIPTION:
A vulnerability has been discovered in the WizzRSS extension for
Firefox, which can be exploited by malicious people to compromise a
vulnerable system.

Input passed via RSS feeds is not properly sanitised before being
used. This can be exploited to e.g. execute arbitrary script code
within the "chrome:" context and execute arbitrary commands on a
user's system.

Successful exploitation requires that a user subscribes to a
specially crafted RSS feed.

The vulnerability is confirmed in Wizz RSS News Reader version
3.0.0.3 and reported in Wizz RSS News Reader versions prior to
3.1.0.0 and Wizz RSS News Reader Lite versions prior to 3.0.0.9b.

SOLUTION:
WizzRSS News Reader:
Update to version 3.1.0.0 or later.

WizzRSS News Reader Lite:
Update to version 3.0.0.9b or later.

PROVIDED AND/OR DISCOVERED BY:
Nick Freeman, Security-Assessment.com

ORIGINAL ADVISORY:
Wizz RSS News Reader:
https://addons.mozilla.org/en-US/firefox/addons/versions/424#version-3.1.0.0

Security-Assessment.com:
http://security-assessment.com/files/advisories/WizzRSS_Firefox_Extension_Privileged_Code_Injection.pdf

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