Multiple SQL injection vulnerabilities in Click&Rank allow remote attackers to execute arbitrary SQL commands via the id parameter to (1) hitcounter.asp, (2) user_delete.asp, and (3) user_update.asp; (4) the userid parameter to admin_login.asp (aka the USERNAME field in admin.asp); and (5) the PassWord parameter to admin_login.asp (aka the PASSWORD field in admin.asp).  NOTE: some of these details are obtained from third party information.