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Date: Mon, 28 Jul 2014 10:20:59 GMT
From: vulns@...nach.com
To: bugtraq@...urityfocus.com
Subject: Kunena Forum Extension for Joomla Multiple Reflected Cross-Site
Scripting Vulnerabilities
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@...nach.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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