WordPress Zopim Live Chat Plugin ZeroClipboard Cross-Site

by Carol~ Moderator - 3/12/13 4:34 AM

In Reply to: VULNERABILITIES / FIXES - March 12, 2013 by Carol~ Moderator

WordPress Zopim Live Chat Plugin ZeroClipboard Cross-Site Scripting Vulnerability

Release Date : 2013-03-12

Criticality level : Less critical
Impact: Cross Site Scripting
Where : From remote
Solution Status : Vendor Patch

Software: WordPress Zopim Live Chat Plugin 1.x

Description:
Henri Salo has discovered a vulnerability in the Zopim Live Chat plugin for WordPress, which can be exploited by malicious people to conduct cross-site scripting attacks.

Input passed via the "id" parameter to wp-content/plugins/zopim-live-chat/ZeroClipboard.swf is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.

The vulnerability is confirmed in version 1.2.5. Prior versions may also be affected.

Solution:
Update to version 1.2.6.

Provided and/or discovered by:
Henri Salo

Original Advisory:
Zopim Live Chat:
http://wordpress.org/extend/plugins/zopim-live-chat/changelog/

Henri Salo:
http://www.openwall.com/lists/oss-security/2013/03/10/2

http://secunia.com/advisories/52566/