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How can I prevent cross-site scripting attacks on my web application?

Asked on Oct 26, 2025

Answer

To prevent cross-site scripting (XSS) attacks, you should implement a combination of input validation, output encoding, and security headers. These measures help ensure that any user input is treated as data rather than executable code.

Example Concept: Cross-site scripting (XSS) is a vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. To mitigate XSS, use output encoding to neutralize potentially harmful characters, and apply security headers like Content-Security-Policy to restrict the types of content that can be executed by the browser.

Additional Comment:

Always validate and sanitize user inputs on both client and server sides.
Use libraries or frameworks that automatically escape output, such as those in modern web development frameworks.
Implement a strong Content-Security-Policy to control resources the browser is allowed to load.

✅ Answered with Security best practices.

Ask any question about Website Security here... and get an instant response.

How can I prevent cross-site scripting attacks on my web application?

Asked on Oct 26, 2025

Answer

Additional Comment:

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