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What are the best practices for protecting against cross-site scripting attacks?

Asked on Oct 16, 2025

Answer

To protect against cross-site scripting (XSS) attacks, it is crucial to validate and sanitize user inputs, use secure headers, and encode outputs. These practices help prevent malicious scripts from being executed in the user's browser.

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, implement Content Security Policy (CSP) using the Content-Security-Policy header, sanitize inputs with libraries like DOMPurify, and encode outputs to ensure scripts are not executed.

Additional Comment:

Always validate and sanitize user inputs on both client and server sides to prevent injection of malicious scripts.
Use the Content-Security-Policy header to restrict the sources from which scripts can be loaded and executed.
Regularly update libraries and frameworks to incorporate the latest security patches.

✅ Answered with Security best practices.

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

What are the best practices for protecting against cross-site scripting attacks?

Asked on Oct 16, 2025

Answer

Additional Comment:

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