However, we found out during implementing the XMLRPC check in our own WordPress security plugin, that many of the plugins that claim to disable XMLRPC don’t do so completely. There are many security plugins available that will attempt to disable WordPress’s XML-RPC interface, such as the Disable XML-RPC plugin. The vulnerabilities go as far back as WordPress 1.5.1.2 and include SQL Injection vulnerabilities, Server-Side Request Forgery (CSRF) vulnerabilities, Denial of Service (DoS) vulnerabilities and others. A quick search on shows the following vulnerabilities: Over the years there have been many security issues that have affected the WordPress XMLRPC API. What are the security risks with leaving WordPress XMLRPC enabled? Which should return a response that looks like this: The following command will send the XML contained within the ‘’ file as a POST request to the remote WordPress API: curl -data The easiest way to do this in Linux is to use cURL. The xmlrpc.php file needs the valid XML sent to it as a POST request. What does an XML-RPC request look like?Ī typical API request body looks like the following: This is the file that will receive XML data, process it and return the response, also in XML. In WordPress, the file responsible for XMLRPC is called xmlrpc.php. Some examples include creating new posts, adding comments, deleting pages and probably most commonly used in WordPress, pingbacks.Īs the name suggests, XMLRPC works by sending and receiving XML data. WordPress XMLRPC allows other websites and software to interact with your WordPress website. In this article, we’ll take a look at the security of XMLRPC, and see if there is any cause for concern. ![]() ![]() Because WordPress XMLRPC is enabled by default in all WordPress installations, there has been concern that it may affect security on WordPress sites. XMLRPC is a standard protocol used by many different applications.
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