How to Disable xmlrpc.php in WordPress: A Comprehensive Guide

WordPress has always included features that allow you to interact with your site remotely. For a long time, the solution was a file called xmlrpc.php. However, in recent years, the file has become more of a problem than a solution. In this article, we’ll look at what xmlrpc.php is, why it was created, and the most common security issues it causes. We’ll also provide step-by-step instructions on how to disable xmlrpc.php on your own WordPress site.

What is xmlrpc.php in WordPress?

XML-RPC is a feature of WordPress that enables data to be transmitted, with HTTP acting as the transport mechanism and XML as the encoding mechanism. It allows you to connect to your site via smartphone, implement trackbacks and pingbacks from other sites, and use functions associated with the Jetpack plugin.

Why was xmlrpc.php created and how was it used?

The use of XML-RPC dates back to the early days of WordPress when writing and publishing on the internet were much more difficult and time-consuming. It was used as a way to establish a connection between an offline blogging client and a WordPress site to publish content. Initially disabled by default, XML-RPC was later enabled with the introduction of the WordPress mobile app.

XML-RPC nowadays

In recent years, WordPress introduced the REST API as a new way to interact with mobile applications and other platforms. Many developers have started using the REST API instead of XML-RPC. However, XML-RPC is still enabled in WordPress, and the xmlrpc.php file is still present in the core software directory.

Why you should disable xmlrpc.php

The biggest problem with XML-RPC is the security concern it poses. It can be abused to launch cyberattacks on your site, such as brute-force attacks and DDoS attacks. To safeguard your site’s security, it’s best to disable xmlrpc.php.

How to disable xmlrpc.php in WordPress

1. Disabling xmlrpc.php with a plugin

You can easily disable xmlrpc.php on your WordPress site by using a plugin. Simply search for and install the ‘Disable XML-RPC-API’ plugin from the WordPress plugin repository. Once activated, the plugin will disable XML-RPC on your site.

2. Disabling xmlrpc.php manually

If you prefer to disable xmlrpc.php manually, you can do so by editing the .htaccess file. Access your .htaccess file through your hosting control panel or an FTP client, and add the provided code to block all incoming xmlrpc.php requests. Make sure to replace ‘xxx.xxx.xxx.xxx’ with the IP address you wish to allow access to xmlrpc.php or remove the line completely.

Conclusion

XML-RPC was once a useful feature for remote publishing on WordPress sites. However, due to security vulnerabilities, it’s recommended to disable xmlrpc.php entirely. Follow the steps provided in this article to disable xmlrpc.php and ensure the security of your WordPress site.

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