Software: WHMCS V3.7.1 Complete Name: WHM Complete Solution Version 3.7.1 Bug: Information Disclosure
Website of the Software: http://www.whmcs.com/
Author: Julian A. Rodriguez Contact: firstname.lastname@example.org
An attacker can obtain very sensible information about the server just typing the next path : /status/index.php?action=phpinfo You can enter to this folder/file without any kind of security test or some authorization. You can get information about the versions of the software, the kernel version, the operating system, the commands that you can use inside the server, you can see if the safe mode of the server is on/off, you can grab information about the server administrator too, the path of the server root, and a lot of more information about the server.
Proof of Concept: http://www.xxxxxxxx.net/status/index.php?action=phpinfo
Note: In the demo of the site whmcs.com you can't enter to this section because the files have been deleted for security reasons.
-- Julian A. Rodriguez Website: http://www.nulledcore.com