source: http://www.securityfocus.com/bid/26126/info
   
SiteBar is prone to multiple input-validation vulnerabilities because it fails to properly sanitize user-supplied input.
   
These issues include:
   
- A local file-include vulnerability
- Multiple arbitrary-script-code-execution vulnerabilities
- Multiple cross-site scripting vulnerabilities
- A URI-redirection vulnerability.
   
Exploiting these issues can allow attackers to access potentially sensitive information, to execute arbitrary script code in the context of the webserver process, to steal cookie-based authentication credentials, and to redirect users to malicious webpages.
   
SiteBar 3.3.8 and prior versions are vulnerable.

http://www.example.com/index.php?target=%22%3E%3Cscript%3Ealert(document.cookie)%3C/script%3E