---
id: 7811
title: "Prototype Pollution: A Deep-Dive"
source_domain: netspi.com
source_url: "https://www.netspi.com/blog/technical-blog/web-application-pentesting/ultimate-guide-to-prototype-pollution/"
published_at: "2024-06-24T00:00:00Z"
tags: ["rce", "web-security", "xss", "prototype-pollution", "javascript"]
phying_url: "https://phying.com/item/7811"
lang: en
---

# Prototype Pollution: A Deep-Dive

## Summary

A deep dive into JavaScript prototype pollution: how attackers control undeclared variables to turn weakly-typed checks into XSS on the client side or remote code execution on the server side.

## Intelligence Metadata

- **Sources:** netspi.com
- **Published:** 2024-06-24T00:00:00Z
- **Original:** https://www.netspi.com/blog/technical-blog/web-application-pentesting/ultimate-guide-to-prototype-pollution/
- **Phying News:** https://phying.com/item/7811