Joomla Kunena Forum 3.0.5 Cross Site Scripting

`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 ([email protected])  
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.  
`