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List:       bugtraq
Subject:    Kunena Forum Extension for Joomla Multiple Reflected Cross-Site Scripting Vulnerabilities
From:       vulns () dionach ! com
Date:       2014-07-28 10:20:59
Message-ID: 201407281020.s6SAKx4H011936 () sf01web3 ! securityfocus ! com
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Kunena forum extension for Joomla multiple reflected cross-site scripting \
vulnerabilities

Class:			Input Validation Error
CVE			N/A
Remote			Yes
Local			No
Published		02/07/2014

Credit			Raymond Rizk of Dionach (vulns@dionach.com)
Vendor			Kunena
Vulnerable		Kunena v3.0.5
Solution Status:	Fixed by Vendor

Kunena Forum is prone to multiple reflected cross-site scripting vulnerabilities \
because it fails to sufficiently sanitize user-supplied data.

An attacker may leverage these issues to execute arbitrary script code in the browser \
of an unsuspecting user in the context of the affected site, steal cookie-based \
authentication credentials, and obtain sensitive information.

Kunena v3.0.5 is known to be vulnerable. Earlier versions may also be vulnerable.

To exploit this issue, an attacker must have a user account on the forum. The \
vulnerability affects all pages/tasks that use parameters in the form of \
“parameter[]”. Additionally, the file upload and profile image upload functionality \
are also vulnerable. This can be seen in the proof of concept example below:

POST /index.php?option=com_kunena&view=home&defaultmenu=130&Itemid=12
Content-Disposition: form-data; name="avatarfile"; filename="<iframe \
src=javascript:alert('XSS')>"

Vendor informed and a new version (3.0.6) was released on 28/07/2014. Vendor \
recommends updating Kunena to the latest version.


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