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Vigil@nce - WordPress WP Live Chat Support: Cross Site Scripting via Referer
September 2016 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can trigger a stored Cross Site Scripting via the HTTP
request header Referer in WordPress WP Live Chat Support, in order
to run JavaScript code in the context of the web site.
Impacted products: WordPress Plugins not comprehensive.
Severity: 2/4.
Creation date: 11/07/2016.
DESCRIPTION OF THE VULNERABILITY
The WP Live Chat Support plugin can be installed on WordPress.
However, it does not filter received data before storing them then
inserting them in generated HTML documents.
An attacker can therefore trigger a stored Cross Site Scripting
via the HTTP request header Referer in WordPress WP Live Chat
Support, in order to run JavaScript code in the context of the web
site.
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