Creative Steps | Reflected XSS into HTML context with nothing encoded

GenTiL
2 min readMay 30, 2024

--

Reflected XSS into HTML context with nothing encoded

You can watch steps with video from here

In the realm of real-world information security, a profound understanding of security vulnerabilities and their exploitation is crucial for enhancing security measures. Practical exercises like labs provide a platform for testing skills and comprehending security enhancement. In this article, we’ll explore how to discover an XSS vulnerability in the search input field and how it can be exploited to display harmful alerts.

Scenario:

A challenge is presented to test an XSS vulnerability in the search input field on a web page. The researcher aims to exploit this vulnerability to display an alert on the webpage.

Steps:

  1. Understanding the Objective: The researcher begins by understanding how input is utilized on the web page and whether the input sent to the search box is directly displayed on the page or not.
  2. Testing the Vulnerability: The researcher tries simple inputs like <h1>Hello</h1> in the search box to see if the text is displayed unencoded or not.
  3. Injection: The researcher injects JavaScript code like alert() into the input sent to the search box to display an alert on the webpage.
  4. Ensuring Success: The researcher verifies the success of the penetration when the designed alert appears within the webpage.

The researcher successfully discovered and exploited an XSS vulnerability in the search input field to display a harmful alert on the webpage. This underscores the importance of understanding security vulnerabilities and applying appropriate preventative measures to enhance cybersecurity.

You can further elaborate on the lessons learned from this experience and how they can be applied to improve cybersecurity for real-world applications.

--

--