source: https://www.securityfocus.com/bid/23057/info
  
w-Agora is prone to multiple input-validation vulnerabilities, including possible SQL-injection issues and multiple cross-site scripting issues, because it fails to sufficiently sanitize user-supplied data.
  
Exploiting these issues could allow an attacker to steal cookie-based authentication credentials, compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database implementation.
  
w-Agora 4.2.1 is vulnerable. 

http://www.example.com/w-agora/change_password.php?newpasswd1=1&newpasswd2=1&passwd=1&site=hello&userid='"><script>alert(documen t.cookie)</script>