DOM XSS via client-side prototype pollution

PortSwigger Web Security Academy lab: DOM XSS via client-side prototype pollution. Topic: Prototype Pollution.

DOM XSS via client-side prototype pollution

$ tldr PortSwigger · Prototype Pollution

·	·
Platform	PortSwigger Web Security Academy
Topic	Prototype Pollution
Difficulty	PRACTITIONER
Official lab	Open

Solve the lab

Language	Author	Format	Link
🇬🇧 EN	PortSwigger	Texto	Open

Resources by skill

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

Related skills

Prototype Pollution · Cross-Site Scripting (XSS)

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Last updated: 2026-05-08