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TITLE:
Wikipedia Toolbar Cross-Context Scripting Vulnerability

SECUNIA ADVISORY ID:
SA37377

VERIFY ADVISORY:
http://secunia.com/advisories/37377/

DESCRIPTION:
A vulnerability has been discovered in the Wikipedia Toolbar
extension for Firefox, which can be exploited by malicious people to
compromise a user's system.

The vulnerability is caused due to the application using invalidated
input in a call to "eval()". This can be exploited to execute
arbitrary Javascript code in "chrome:" context.

Successful exploitation requires that a user is tricked into using
certain Toolbar buttons when visiting a specially crafted web page.

The vulnerability is confirmed in version 0.5.9. Other versions may
also be affected.

SOLUTION:
Fixed in version 0.5.9.2 (experimental) by restricting the attack
vector to "http://en.wikipedia.org/wiki/".

PROVIDED AND/OR DISCOVERED BY:
Sruthi Bandhakavi

ORIGINAL ADVISORY:
https://addons.mozilla.org/en-US/firefox/addons/versions/6401#version-0.5.9.2

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