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Date: Fri, 25 Dec 2009 20:15:28 +0200
From: "MustLive" <>
To: <>
Subject: Vulnerability in Joomulus for Joomla

Hello Full-Disclosure!

I want to warn you about Cross-Site Scripting vulnerability in Joomulus
(mod_joomulus) plugin for Joomla. Which I found at 23.12.2009.

It is similar to XSS vulnerability in WP-Cumulus
(, because it's using tagcloud.swf made by
author of WP-Cumulus. About millions of flash files tagcloud.swf which are
vulnerable to XSS attacks I mentioned in my article XSS vulnerabilities in 8
millions flash files (



Code will execute after click. It's strictly social XSS.

Also it's possible to conduct (like in WP-Cumulus) HTML Injection attack,
including in those flash files which have protection (in flash files or via
WAF) against javascript and vbscript URI in parameter tagcloud.

HTML Injection:


Vulnerable are Joomulus 2.0 and previous versions.

I mentioned about this vulnerability at my site

Best wishes & regards,
Administrator of Websecurity web site 

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