PHPKIT 1.6.4 PL1 includes the session ID in the URL, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks by reading the PHPKITSID parameter from the HTTP Referer and using it in a request to (1) modify the user profile via upload_files/include.php or (2) create a new administrator via upload_files/pk/include.php.
Cross-Site Request Forgery The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.