Cross-Site_Scripting

What problem does it solve?

This Skill helps security testers identify and understand XSS vulnerabilities in web applications by guiding them through discovery, payload construction, and verification in a controlled lab environment.

Core Features & Use Cases

• XSS discovery: Locate user-input fields susceptible to Stored, Reflected, and DOM-based XSS.
• Payload exploitation: Craft and deploy payloads to execute JavaScript in the victim's browser.
• Session hijacking demo: Demonstrate how stolen cookies can be captured and used in an attack workflow for training purposes.
• Preventive guidance: Document defensive practices and suggested mitigations for developers.

Quick Start

Start the lab server, connect to the VPN, and navigate to the lab's assessment pages. Identify a vulnerable input field, inject a working XSS payload to trigger JavaScript, and then perform a basic session-hijacking test by attempting to capture cookies with a payload. Record findings and reference mitigation steps for future fixes.