We covered cross site scripting vulnerability through different levels of security. We used TryHackMe Junior Penetration Tester pathway.

It’s worth noting that because XSS is based on JavaScript, it would be helpful to have a basic understanding of the language. However, none of the examples is overly complicated—also, a basic understanding of Client-Server requests and responses.

Cross-Site Scripting, better known as XSS in the cybersecurity community, is classified as an injection attack where malicious JavaScript gets injected into a web application with the intention of being executed by other users. In this room, you’ll learn about the different XSS types, how to create XSS payloads, how to modify your payloads to evade filters, and then end with a practical lab where you can try out your new skills.

Cross-site scripting vulnerabilities are extremely common. Below are a few reports of XSS found in massive applications; you can get paid very well for finding and reporting these vulnerabilities.

What does XSS stand for?
Which document property could contain the user’s session token?

Which JavaScript method is often used as a Proof Of Concept?

Where in an URL is a good place to test for reflected XSS?
How are stored XSS payloads usually stored on a website?
What unsafe JavaScript method is good to look for in source code?
What tool can you use to test for Blind XSS?

What type of XSS is very similar to Blind XSS?

What is the flag you received from level six?
What is the value of the staff-session cookie?

Video Walk-Through

About the Author

Cybersecurity Trainer MS in Cybersecurity Expertise in Healthcare and Finance Industries Penetration tester and compliance auditor

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