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TITLE:
Mozilla Firefox Wizz RSS News Reader Extension Cross-Context
Scripting

SECUNIA ADVISORY ID:
SA24913

VERIFY ADVISORY:
http://secunia.com/advisories/24913/

CRITICAL:
Highly critical

IMPACT:
Cross Site Scripting, System access

WHERE:
>From remote

SOFTWARE:
Wizz RSS News Reader (Extension for Mozilla Firefox) 2.x
http://secunia.com/product/13955/

DESCRIPTION:
A vulnerability has been reported in the Wizz RSS News Reader
extension for Mozilla Firefox, which can be exploited by malicious
people to compromise a vulnerable system.

Certain input is not properly sanitised before being used and can be
exploited to e.g. execute arbitrary script code within the "chrome:"
context.

Successful exploitation requires that a user is tricked into loading
a specially crafted RSS feed.

The vulnerability is reported in versions prior to 2.1.9.

SOLUTION:
Update to version 2.1.9.
https://addons.mozilla.org/en-US/firefox/addon/424

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Jefferson Ogata, NOAA Computer Incident Response
Team.

ORIGINAL ADVISORY:
Wizz RSS News Reader:
https://addons.mozilla.org/en-US/firefox/addon/424

OTHER REFERENCES:
US-CERT VU#319464:
http://www.kb.cert.org/vuls/id/319464

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