XSS Challenge - OWASP Juice Shop

Cross-Site Scripting (XSS) vulnerabilities enable attackers to inject and execute malicious scripts within web applications, compromising user data, session integrity, and application functionality. Understanding and exploiting these vulnerabilities is essential for improving your ability to secure web applications.

In this challenge lab, you will tackle three distinct XSS challenges within the OWASP Juice Shop, testing your skills across various scenarios:

1. DOM-Based XSS: Exploit vulnerabilities in client-side code to inject and execute malicious scripts.
2. HTTP-Header XSS: Perform a persisted XSS attack by injecting a malicious payload into an HTTP header.
3. Server-Side XSS: Bypass server-side protections to execute a stored XSS payload.

This lab integrates advanced XSS techniques to challenge your understanding of client-side and server-side vulnerabilities, testing your ability to identify and exploit XSS in different contexts.

Objectives Upon completing this lab, you will be able to:

• Perform DOM-based XSS attacks by exploiting vulnerabilities in client-side code execution.
• Exploit HTTP-header-based XSS to inject persisted payloads that are stored and executed.
• Bypass server-side protections to execute XSS payloads.
• Apply your knowledge of XSS exploitation techniques in real-world scenarios.

Who is this lab for? This lab is designed for:

• Security professionals looking to challenge and refine their knowledge of advanced XSS exploitation.
• Developers seeking to understand how XSS attacks exploit vulnerabilities across different layers of web applications.
• Learners eager to apply advanced XSS techniques in a hands-on, controlled environment.