Cross Site Scripting (XSS) vulnerabilty exists in Hucart CMS 5.7.4 is via the mes_title field. The first user inserts a malicious script into the header field of the outbox and sends it to other users. When other users open the email, the malicious code will be executed.
An issue was discovered in HuCart v5.7.4. There is a CSRF vulnerability that can add an admin account via /adminsys/index.php?load=admins&act=edit_info&act_type=add.
HuCart 5.7.4 has SQL injection in get_ip() in system/class/helper_class.php via the X-Forwarded-For HTTP header to the user/index.php?load=login&act=act_login URI.