In this section, we'll describe DOM-based cross-site scripting (DOM XSS), explain how to find DOM XSS vulnerabilities, and talk about how to exploit DOM XSS with different sources and sinks.

The following list provides a quick overview of common DOM-based vulnerabilities and an example of a sink that can lead to each one. For a more comprehensive list of relevant sinks, please refer to the …

DOM-based XSS (also known as DOM XSS) arises when an application contains some client-side JavaScript that processes data from an untrusted source in an unsafe way, usually by writing the …

Description: Cross-site scripting (DOM-based) DOM-based vulnerabilities arise when a client-side script reads data from a controllable part of the DOM (for example, the URL) and processes this data in an …

Back in the lab, go to the target website and use the search bar to search for a random test string, such as "XSS". Return to the Proxy tool in Burp Suite and forward the request. On the Intercept tab, notice …

Interactive cross-site scripting (XSS) cheat sheet for 2025, brought to you by PortSwigger. Actively maintained, and regularly updated with new vectors.

Dec 16, 2025 · DOM-based XSS (DOM XSS) arises when an application contains client-side JavaScript that processes data from an untrusted source in an unsafe way, usually by writing the data back to …

This lab contains a DOM-based cross-site scripting vulnerability in the search query tracking functionality. It uses the JavaScript document.write function, which writes data out to the page.

This lab contains a DOM-based cross-site scripting vulnerability in the search blog functionality. It uses an innerHTML assignment, which changes the HTML contents of a div element, using data from …

Dec 16, 2025 · This information enables you to easily see the XSS context and test which characters and events you need to craft an exploit. In the following example, we've successfully broken out of …