Sept. 9, 2023, 6:46 a.m. | Ahmet Talha Şen

System Weakness - Medium systemweakness.com

Solving the Cross-Site Scripting (XSS) HTB CTF Challenge

Created by Lexica.art

Challenge Overview

We are presented with several scenarios, each demonstrating different aspects of XSS attacks. The goal is to find and exploit the XSS vulnerabilities to retrieve the flags.

Scenario 1: Extracting Cookie Information

In this scenario, we have a POST request to index.php, which reflects our input in the response. We need to modify our payload to extract the cookie data instead of displaying the URL.

Payload

POST …

bugbounty-writeup ctf-writeup cybersecurity htb-writeup web app security

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