Web Directory Pro is product of hostingfrenzy.com I check latest version and detect some security holes, attackers can backup database or re-config system:
1. Backup database:
http://[domain]/[path]/admin/backup_db.php 
2. Re-config system:
http://[domain]/[path]/admin/options.php 
Note: If IE cannot download bacup file, you can use firefox.
The vendor was fixed but more sites can exploit.