This snippet disables XML-RPC in WordPress, which is a remote procedure call protocol that enables systems to communicate over a network. While XML-RPC can be useful, disabling it is often recommended for security reasons.
add_filter( 'xmlrpc_enabled', '__return_false' );
Reasons to Disable XML-RPC:
- Security Vulnerabilities: XML-RPC has been a target for brute force attacks. Hackers can use it to try thousands of password combinations to gain access to your website.
- DDoS Attacks: XML-RPC can be exploited for distributed denial-of-service (DDoS) attacks. Since it can make multiple requests with a single command, it’s a potent tool for attackers.
- Reducing Resource Usage: Disabling XML-RPC can reduce the load on your server, as it blocks an avenue through which numerous requests might be made.
- Limited Use Cases: In the past, XML-RPC was essential for functionalities like remote publishing from mobile apps or integration with other systems. However, with the REST API in modern WordPress, XML-RPC’s utility has diminished.
- Control Over Site Access: Disabling XML-RPC gives you more control over how your website is accessed and interacted with, limiting access to more direct and typically more secure methods.