Btcpay server v1.7.4 html injection Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2023-04-05 | Type : webapps | Platform : multiple
This exploit / vulnerability Btcpay server v1.7.4 html injection is for educational purposes only and if it is used you will do on your own risk!

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# Exploit Title: BTCPay Server v1.7.4 - HTML Injection
# Date: 01/26/2023
# Exploit Author: Manojkumar J (TheWhiteEvil)
# Vendor Homepage: https://github.com/btcpayserver/btcpayserver
# Software Link:
https://github.com/btcpayserver/btcpayserver/releases/tag/v1.7.5
# Version: <=1.7.4
# Tested on: Windows10
# CVE : CVE-2023-0493

# Description:

BTCPay Server v1.7.4 HTML injection vulnerability.

# Steps to exploit:

1. Create an account on the target website.

Register endpoint: https://target-website.com/register#

2. Move on to the API key and create API key with the html injection in the
label field.

Example:

<a href="https://hackerbro.in">clickhere</a>


3. Click remove/delete API key, the html injection will render.