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How can I ensure my website resists cross-site scripting attacks?

Asked on Oct 14, 2025

Answer

To protect your website from cross-site scripting (XSS) attacks, you should implement a combination of input validation, output encoding, and security headers.

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 security headers like Content-Security-Policy to control resources the browser is allowed to load, and ensure all user inputs are properly sanitized and encoded before rendering in the browser.

Additional Comment:
  • Always validate and sanitize user inputs on both client and server sides.
  • Use Content-Security-Policy headers to restrict the sources of scripts and other resources.
  • Consider using libraries or frameworks that automatically handle output encoding to prevent XSS.

✅ Answered with Security best practices.


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