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Cross-Site Scripting

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May 1, 2024 Updated June 19, 2025 17 minute read

An Introduction to Cross-Site Scripting (XSS)

Cross-Site Scripting, often abbreviated as XSS, is a common type of security vulnerability typically found in web applications. At its core, XSS allows an attacker to inject malicious scripts (most commonly client-side scripts like JavaScript) into web pages viewed by other users. This occurs when an application takes untrusted data and sends it to a web browser without proper validation or escaping. Essentially, the attacker tricks a trusted website into delivering their harmful code to an unsuspecting user's browser.

Path to Cross-Site Scripting

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We've curated seven courses to help you on your path to Cross-Site Scripting. Use these to develop your skills, build background knowledge, and put what you learn to practice.

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Exploiting and Securing Vulnerabilities in Java Applications

Exploiting and Securing Vulnerabilities in Java...

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令和7年春版：参考書の著者直伝！【応用情報技術者試験　午前版】講座　合格に必要な知識の徹底解説＋過去問題解説

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Identifying Security Vulnerabilities

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CISSP Domain 8: Software development security

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Hacking in Practice: Intensive Ethical Hacking MEGA Course

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令和7年春版：参考書の著者直伝！【応用情報技術者試験　午後版】講座　合格に必要な知識の徹底解説＋過去問題解説

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Red and Blue Team Foundations Course - VAPT & Infosec Basics

Red and Blue Team Foundations Course - VAPT & Infosec...

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Reading list

We've selected seven books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Cross-Site Scripting.