Web Directory Pro allows remote attackers to (1) backup the database and obtain the backup via a direct request to admin/backup_db.php or (2) modify configuration via a direct request to admin/options.php.
https://www.exploit-db.com/exploits/8878
https://exchange.xforce.ibmcloud.com/vulnerabilities/30009
http://www.securityfocus.com/archive/1/450556/100/0/threaded