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

Asked on Nov 06, 2025

Answer

To prevent cross-site scripting (XSS) attacks, you should sanitize user inputs and use security headers to mitigate risks. Implementing Content Security Policy (CSP) and proper input validation are key strategies.

<!-- BEGIN COPY / PASTE -->
    Content-Security-Policy: default-src 'self'; script-src 'self' 'nonce-<random>'; object-src 'none';
    <!-- END COPY / PASTE -->

Additional Comment:

Always sanitize and validate user inputs on both client and server sides to prevent script injection.
Use HTTP-only and secure cookies to protect session data from being accessed by scripts.
Regularly update libraries and frameworks to patch known vulnerabilities that could be exploited for XSS.

✅ 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 Nov 06, 2025

Answer

Additional Comment:

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