How can I secure my Express.js applications?

How can I secure my Express.js applications?

To secure your Express.js applications, you can implement several best practices such as using HTTPS, validating user input, and setting security headers.

What are some common security vulnerabilities I should be aware of?

Common vulnerabilities include SQL injection, cross-site scripting (XSS), and cross-site request forgery (CSRF). Always sanitize user inputs.

How can I prevent SQL injection in my app?

You can prevent SQL injection by using parameterized queries or ORM libraries that handle query building safely.

Are there any middleware I should use for security?

Yes, consider using middleware like Helmet for setting HTTP headers and express-rate-limit to prevent brute-force attacks.