Uapplication Uguestbook 1.0 stores sensitive information under the web root with insufficient access control, which allows remote attackers to download a database via a direct request for mdb-database/guestbook.mdb.
https://www.exploit-db.com/exploits/8609
https://exchange.xforce.ibmcloud.com/vulnerabilities/20314
http://www.securityfocus.com/archive/1/456240/100/0/threaded