Update to use the wp_content_dir option

Author: rastating

modules/exploits/tevolution_shell_upload.rb

@@ -38,7 +38,7 @@ def payload_body_builder
 
   def scrape_current_theme
     res = execute_get_request(url: full_uri)
-    res.body[/\/wp-content\/themes\/(.*?)\//, 1] if res && res.body
+    res.body[/\/#{wp_content_dir}\/themes\/(.*?)\//, 1] if res && res.body
   end
 
   def uploaded_payload_location