source: https://www.securityfocus.com/bid/2660/info

DataWizard WebXQ server could be led to traverse directories and possibly reveal files outside of the web root.

By including '/../' sequences along with a known file or directory in requested URLs, a remote user can obtain read access to the requested directories and files outside the web root, potentially compromising the privacy of user data and/or obtaining information which could be used to further compromise the host. 

http://www.example.com/./.../[target file]