source: https://www.securityfocus.com/bid/28550/info

Terracotta is prone to a local file-include vulnerability because it fails to properly sanitize user-supplied input.

An attacker can exploit this vulnerability using directory-traversal strings to view local files in the context of the webserver process. This may aid in further attacks.

http://www.example.com/index.php?CurrentDirectory=FOLDER_420c142a1bebd1.90885049/../../../../../../../../../etc/&StartAt=12