DISALLOW_FILE_EDIT constant in WordPress is used to disable the theme and plugin editors from the WordPress admin panel. When this constant is set to
true, it prevents users (even administrators) from accessing the built-in code editors for themes and plugins via the WordPress dashboard. This can be a useful security measure.
Prevent Malicious Changes: If an attacker gains access to your WordPress dashboard (for example, by obtaining an admin password), they could use the theme or plugin editors to insert malicious code directly into your site. By disabling these editors, you add an extra layer of protection against such attacks.
Avoid Accidental Modifications: Even well-meaning administrators can accidentally introduce errors or vulnerabilities by editing code directly in the dashboard. Disabling the file editors can help prevent these mistakes.
Limit Access Points: The more access points and functionalities you have in the backend, the more potential vulnerabilities you might expose. By limiting these functionalities, you reduce potential entry points for attackers.
To implement this in your WordPress site:
- Access your
wp-config.phpfile, which is typically located in the root directory of your WordPress installation.
- Add the following line of code:
- Save the changes to the wp-config.php file.
After making this change, if you try to access the theme or plugin editors via the WordPress dashboard, you’ll see a message indicating that file editing has been disabled.
It’s worth noting that while DISALLOW_FILE_EDIT is a valuable security measure, it’s just one of many steps you should take to secure your WordPress site. Regular updates, strong passwords, two-factor authentication, and security plugins are also essential components of a comprehensive WordPress security strategy.