Based

Dom based vulnerabilities

Dom based vulnerabilities

DOM-based vulnerabilities arise when a website contains JavaScript that takes an attacker-controllable value, known as a source, and passes it into a dangerous function, known as a sink.

  1. What is DOM in cyber security?
  2. What is DOM based attack?
  3. What does DOM stand for in XSS?
  4. How do I mitigate DOM based XSS?

What is DOM in cyber security?

What is DOM-based XSS? DOM-based XSS is a cross-site scripting vulnerability that enables attackers to inject a malicious payload into a web page by manipulating the client's browser environment. Since these attacks rely on the Document Object Model, they are orchestrated on the client-side after loading the page.

What is DOM based attack?

Definition. DOM Based XSS (or as it is called in some texts, “type-0 XSS”) is an XSS attack wherein the attack payload is executed as a result of modifying the DOM “environment” in the victim's browser used by the original client side script, so that the client side code runs in an “unexpected” manner.

What does DOM stand for in XSS?

A DOM-based cross-site scripting (XSS) attack happens when a threat actor modifies the document object model (DOM) environment in the victim's browser. So, while the HTML itself doesn't change, the code on the client side executes differently. This type of attack is also sometimes referred to as “type-0 XSS.”

How do I mitigate DOM based XSS?

How To Prevent DOM XSS. The primary rule that you must follow to prevent DOM XSS is: sanitize all untrusted data, even if it is only used in client-side scripts. If you have to use user input on your page, always use it in the text context, never as HTML tags or any other potential code. Avoid methods such as document.

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