How can I prevent cross-site scripting attacks on my website?
Asked on Oct 24, 2025
Answer
To prevent cross-site scripting (XSS) attacks on your website, you should implement a combination of input validation, output encoding, and security headers. These measures help ensure that malicious scripts cannot be executed in the context of your web pages.
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, you can use security headers like Content-Security-Policy to restrict the sources of executable scripts, and ensure all user inputs are properly validated and encoded before rendering them in the browser.
Additional Comment:
- Always validate and sanitize user inputs on both client and server sides to prevent injection of malicious scripts.
- Use output encoding libraries to ensure any data rendered in HTML, JavaScript, or CSS is safe.
- Implement a strong
Content-Security-Policyheader to control which resources can be loaded and executed on your site.
✅ Answered with Security best practices.
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