PhotoSmash 1.0.1 Cross Site Scripting

`Vulnerability ID: HTB22867  
Reference: http://www.htbridge.ch/advisory/xss_in_photosmash_wordpress_plugin.html  
Product: PhotoSmash wordpress plugin  
Vendor: Byron Bennett ( http://smashly.net/ )   
Vulnerable Version: 1.0.1   
Vendor Notification: 22 February 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/photosmash-galleries/index.php" script to properly sanitize user-supplied input in "action" 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/photosmash-galleries/index.php?action=%3Cscript%3Ealert%28%22XSS%22%29;%3C/script%3E  
  
Solution: Upgrade to the most recent version  
`