What Is xmlrpc.php and Why You Should Secure or Disable It

WordPress security is one of the most important concerns for website owners today. Many WordPress websites get hacked not because of complex attacks, but due to basic security misconfigurations. One such commonly discussed WordPress file is xmlrpc.php.

In this blog post, you will learn:

  • What xmlrpc.php is in WordPress
  • Why xmlrpc.php can be a security risk
  • When you should disable xmlrpc.php
  • Safe and recommended ways to secure xmlrpc.php

This guide is written for beginners, business owners, and anyone managing a WordPress website.

What Is xmlrpc.php in WordPress?

xmlrpc.php is a core WordPress file that allows your website to communicate with external applications. It enables remote access features that help WordPress interact with third-party services.

xmlrpc.php is commonly used for:

  • WordPress mobile apps (Android & iOS)
  • Jetpack plugin features
  • Remote publishing tools

The file itself is not malicious, but if it is not properly secured or not needed, it can increase the attack surface of your WordPress website.

Why Is xmlrpc.php Considered a WordPress Security Risk?

xmlrpc.php is often targeted by automated bots because it can be misused if security is weak.

Common risks include:

  • Repeated login attempts through automated requests
  • Increased risk when weak passwords are used
  • Unnecessary server load due to bot traffic

⚠️ Important note: The security risk is not xmlrpc.php itself, but poor WordPress security practices.

When Should You Disable xmlrpc.php?

You should consider disabling xmlrpc.php if:

  • You do not use the WordPress mobile app
  • You do not use Jetpack or remote publishing services
  • Your website is a simple business, portfolio, or blog site

In such cases, disabling xmlrpc.php can improve overall WordPress security without affecting site functionality.

How to Secure xmlrpc.php in WordPress (Safe Methods)

If disabling xmlrpc.php is not an option, you can secure it using the following recommended methods.

1. Use a WordPress Security Plugin

Popular WordPress security plugins include:

  • Wordfence Security
  • iThemes Security
  • All In One WP Security

These plugins help by:

  • Limiting login attempts
  • Blocking malicious bot traffic
  • Protecting xmlrpc.php automatically

2. Enable Hosting-Level Firewall Protection

Most quality hosting providers offer built-in firewalls that:

  • Block suspicious requests
  • Protect WordPress core files
  • Reduce xmlrpc.php abuse

A good hosting firewall adds an extra layer of WordPress security.

3. Disable xmlrpc.php Using functions.php (Code Method)

If you do not use WordPress mobile apps, Jetpack, or remote publishing, you can safely disable xmlrpc.php using code. Add the following snippet to your theme’s functions.php file or a site-specific plugin.

// Disable XML-RPC in WordPress for better security
add_filter( ‘xmlrpc_enabled’, ‘__return_false’ );

This code completely disables xmlrpc.php access and reduces the risk of brute-force and bot-based attacks.

Important notes:

  • Always add this code to a child theme or a custom plugin
  • Do not edit core WordPress files
  • Test your website after adding the code

Optional: Disable Pingbacks Only (Safer Alternative)

If you want to keep xmlrpc.php enabled but block pingback-related abuse, use this code:

// Disable XML-RPC pingbacks only
add_filter( ‘xmlrpc_methods’, function( $methods ) {
unset( $methods[‘pingback.ping’] );
unset( $methods[‘pingback.extensions.getPingbacks’] );
return $methods;
});

This method improves WordPress security while keeping limited XML-RPC functionality.

2. Enable Hosting-Level Firewall Protection

Most quality hosting providers offer built-in firewalls that:

  • Block suspicious requests
  • Protect WordPress core files
  • Reduce xmlrpc.php abuse

A good hosting firewall adds an extra layer of WordPress security.

3. Disable xmlrpc.php Using a Plugin

If you do not need xmlrpc.php, the safest way to disable it is by using a trusted WordPress plugin. This avoids manual code changes and reduces the risk of errors.

Benefits of Disabling or Securing xmlrpc.php

  • Reduced risk of WordPress hacking attempts
  • Improved website performance
  • Lower server resource usage
  • Better overall WordPress security

Real-World Experience

In my experience managing WordPress websites, I have seen many cases where unsecured xmlrpc.php caused:

  • Frequent bot attacks
  • Slow website performance
  • Hosting account warnings or temporary suspensions

Taking basic WordPress security steps early can prevent serious issues later.

Conclusion

xmlrpc.php is a useful WordPress feature, but it is not required for every website. If your site does not rely on remote access features, disabling or securing xmlrpc.php is a smart and effective WordPress security practice.

WordPress security should always be treated as an ongoing process, not a one-time task.

Need Help With WordPress Security?

If you want to:

  • Secure your WordPress website
  • Protect it from hacking attempts
  • Improve performance and stability

👉 Visit the Contact Me page to get professional help with WordPress security, maintenance, and optimization.