WordPress theme security: How to keep your WordPress theme and plugin code secure

22 Oct

The sexy part of theme and plugin development is often creating what visitors see on the front end. However, without substance in the form of security measures, your slick solution could cause long-lasting damage. Of course, WordPress is hot on security. It’s no surprise there’s a whole section of the WordPress Developer Handbook dedicated to protecting users and their sites. What’s more, implementing WordPress theme security is incredibly easy (in theory).

Improve WordPress theme security in 4 easy steps

In this post, we’ll get straight down to business. We’ll offer four great ways to lock down WordPress theme security and provide a more dependable solution for your user base.

  1. Validate your data.

  2. Sanitize inputs and outputs.

  3. Check user capabilities.

  4. Create and validate nonces.

Ready to take a deeper look at securing your WordPress themes? Let’s get started!

1. Validate your data

Data validation is a fundamental way to secure your themes and plugins.

Data validation is one of the core concepts of user website interaction. It ensures any information entered is in the correct format, and it’s crucial when requiring restrictive user input (such as a telephone number or zip code field). Good validation will reduce errors, but also shut any “open doors” to code injections in website forms.

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