Directory traversal vulnerability in the DisplayChartPDF servlet in ZOHO ManageEngine Netflow Analyzer 8.6 through 10.2 and IT360 10.3 allows remote attackers and remote authenticated users to read arbitrary files via a .. (dot dot) in the filename parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/99046
http://www.securityfocus.com/archive/1/534141/100/0/threaded
http://www.securityfocus.com/archive/1/534122/100/0/threaded