HTB22894: XSS in Sodahead Polls wordpress plugin

[advisory () htbridge ch]

Vulnerability ID: HTB22894
Reference: http://www.htbridge.ch/advisory/xss_in_sodahead_polls_wordpress_plugin_1.html
Product: Sodahead Polls wordpress plugin
Vendor: SodaHead.com ( SodaHead.com ) 
Vulnerable Version: 2.0.2
Vendor Notification: 03 March 2011 
Vulnerability Type: XSS (Cross Site Scripting)
Status: Fixed by Vendor
Risk level: Medium 
Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) 

Vulnerability Details:
The vulnerability exists due to failure in the "/wp-content/plugins/sodahead-polls/poll.php" script to properly 
sanitize user-supplied input in "customize" variable.
User can execute arbitrary JavaScript code within the vulnerable application.
Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based 
authentication credentials, disclosure or modification of sensitive data.

The following PoC is available:


http://[host]/wp-content/plugins/sodahead-polls/poll.php?customize=%27;%3C/script%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

Solution: Upgrade to the most recent version