Improves detection of WP Version, Plugins etc by checking 404

app/finders/themes/urls_in_404_page.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module WPScan
+  module Finders
+    module Themes
+      # URLs In 04 Page Finder
+      class UrlsIn404Page < UrlsInHomepage
+        # @return [ Typhoeus::Response ]
+        def page_res
+          @page_res ||= target.error_404_res
+        end
+      end
+    end
+  end
+end