Directory traversal vulnerability in include/global.inc.php in Virtual Design Studio vlbook 1.21 allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the l parameter.
https://www.exploit-db.com/exploits/5529
https://exchange.xforce.ibmcloud.com/vulnerabilities/42127
http://www.securityfocus.com/archive/1/491519/100/0/threaded