Cross-Site Request Forgery (CSRF)

Mitigating Cross-Site Request Forgery (CSRF) vulnerabilities is crucial to prevent attackers from executing unauthorized actions on behalf of authenticated users. The mitigation techniques for CSRF are language-agnostic, and you should follow best practices in any programming language. Here's how to mitigate CSRF:

General Tips (Applicable to All Languages):

1. **Use Anti-CSRF Tokens:** Include anti-CSRF tokens in your web forms. These tokens should be unique for each session and associated with the user's session.

2. **Verify Origin Headers:** Check the `Origin` or `Referer` headers to ensure that requests originate from the same domain as your application.

3. **Use the SameSite Cookie Attribute:** Set the `SameSite` attribute on cookies to `Strict` or `Lax` to prevent cookies from being sent in cross-origin requests.

4. **Implement Stateless CSRF Tokens:** Use stateless anti-CSRF tokens that don't rely on server-side session storage.

5. **Verify and Reject Unsafe Requests:** On the server-side, validate anti-CSRF tokens and reject any requests with missing or invalid tokens.

6. **Use Framework Features:** Many web frameworks provide built-in CSRF protection mechanisms. Utilize these features whenever possible.

7. **Security Audits:** Regularly audit your code for CSRF vulnerabilities and use security scanning tools to detect potential issues.

By following these best practices and treating user inputs as untrusted, you can significantly reduce the risk of CSRF vulnerabilities in your applications, regardless of the programming language you're using.