---
title: "Discussion on \"DOM XSS via Web Messages & JavaScript URLs - A Practical Walkthrough\" | Hashnode"
description: "Discussion on \"DOM XSS via Web Messages & JavaScript URLs - A Practical Walkthrough\". Introduction\nDOM-based Cross-Site Scripting (DOM XSS) is a client-side vulnerability where malicious JavaScript executes due to improper due to improper handling of user-controlled input. One common attack vector is web messaging(postMessage), which ..."
url: "https://hashnode.com/posts/dom-xss-via-web-messages-and-javascript-urls-a-practical-walkthrough/67d6ef4e4937dd56c212935e"
---

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# [DOM XSS via Web Messages & JavaScript URLs - A Practical Walkthrough](https://hackerc215.hashnode.dev/dom-xss-via-web-messages-and-javascript-urls-a-practical-walkthrough?utm_source=hashnode&utm_medium=feed)

Introduction DOM-based Cross-Site Scripting (DOM XSS) is a client-side vulnerability where malicious JavaScript executes due to improper due to improper handling of user-controlled input. One common attack vector is web messaging(postMessage), which ...

Mar 16, 2025 · 2 min read · hackerc215.hashnode.dev  
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-   [#dom-based-vulnerability](https://hashnode.com/tag/dom-based-vulnerability)

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