Wordpress XMLRPC parsing is vulnerable to a XML based denial of service. This vulnerability affects Wordpress 3.5 - 3.9.2 (3.8.4 and 3.7.4 are also patched).
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use auxiliary/dos/http/wordpress_xmlrpc_dos
msf auxiliary(wordpress_xmlrpc_dos) > show actions
...actions...
msf auxiliary(wordpress_xmlrpc_dos) > set ACTION < action-name >
msf auxiliary(wordpress_xmlrpc_dos) > show options
...show and set options...
msf auxiliary(wordpress_xmlrpc_dos) > run
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