Question 1

What is XML-RPC in WordPress?

Accepted Answer

XML-RPC is an older protocol (xmlrpc.php) that lets external applications connect to your WordPress site to publish content, authenticate users, and handle pingbacks and trackbacks.

Question 2

Should I disable XML-RPC?

Accepted Answer

If you do not use apps or services that require it, yes. It is a common target for brute force and DDoS attacks, so disabling it reduces your attack surface.

Question 3

How do I disable xmlrpc.php?

Accepted Answer

Use a security plugin, block it in your server configuration, or add a filter in your theme. A WordPress developer can help you do this safely after checking whether any integrations depend on XML-RPC.

Question 4

What replaced XML-RPC?

Accepted Answer

The WordPress REST API, introduced in WordPress 4.7, is the modern, more flexible way for many apps and services to interact with WordPress.

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Demystifying XML-RPC: Analysing its Role in WordPress Security