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Cross-Site Scripting (XSS)
A complete guide to understanding, exploiting, and preventing Cross-Site Scripting vulnerabilities. Covers all three types - reflected, stored, and DOM-based - along with bypass techniques and secure coding practices.
XSS is consistently one of the most exploited web vulnerabilities — knowing it protects every app you build.
01 beginner What is Cross-Site Scripting?
+100 XP
02 beginner Reflected XSS
+100 XP
03 intermediate Stored XSS
+175 XP
04 intermediate DOM-Based XSS
+175 XP
05 advanced XSS Filter Bypass Techniques
+250 XP
06 intermediate Preventing XSS
+175 XP
07 beginner Lab: Reflected XSS Discovery
30 min +150 XP
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