DataTrack System 3.5 allows remote attackers to bypass intended restrictions on file extensions, and read arbitrary files, via a trailing backslash in a URI, as demonstrated by (1) web.config\ and (2) .ascx\ files.
https://exchange.xforce.ibmcloud.com/vulnerabilities/58735
https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-2097
http://packetstormsecurity.org/1005-exploits/datatrackserver35-xss.txt
http://cross-site-scripting.blogspot.com/2010/05/datatrack-system-35-persistent-xss.html