Reflected XSS in a JavaScript URL with some characters blocked

PortSwigger Web Security Academy lab: Reflected XSS in a JavaScript URL with some characters blocked. Topic: Cross-Site Scripting (XSS).

Reflected XSS in a JavaScript URL with some characters blocked

$ tldr PortSwigger · Cross-Site Scripting (XSS)

·	·
Platform	PortSwigger Web Security Academy
Topic	Cross-Site Scripting (XSS)
Difficulty	APPRENTICE
Official lab	Open

Solve the lab

Language	Author	Format	Link
🇬🇧 EN	PortSwigger	Texto	Open

Resources by skill

Skill	Source	Link
Cross-Site Scripting (XSS)	HackTricks	Open
Cross-Site Scripting (XSS)	PortSwigger	Open

Related skills

Cross-Site Scripting (XSS)

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Last updated: 2026-06-07