What are some effective XSS mitigation techniques?

What are some effective XSS mitigation techniques?

There are several effective techniques to mitigate XSS, including input validation, output encoding, and using Content Security Policy (CSP). Would you like to know more about any specific technique?

Can you explain how Content Security Policy works?

Content Security Policy (CSP) is a security feature that helps prevent XSS by allowing you to specify which sources of content are trusted. It restricts the resources that can be loaded on your web page, reducing the risk of malicious scripts.

What is output encoding and why is it important?

Output encoding is the process of converting data into a safe format before rendering it in the browser. It's important because it ensures that any potentially harmful scripts are treated as data rather than executable code.

Are there any libraries or tools that can help with XSS prevention?

Yes, there are several libraries like DOMPurify for sanitizing HTML and frameworks like Angular that have built-in protections against XSS. Would you like recommendations for specific use cases?