Add fix for oembed API

app/finders/users/oembed_api.rb

@@ -36,6 +36,8 @@ module WPScan
 
           oembed_data = oembed_data.first if oembed_data.is_a?(Array)
 
+          oembed_data = {} unless oembed_data.is_a?(Hash)
+
           if oembed_data['author_url'] =~ %r{/author/([^/]+)/?\z}
             details = [Regexp.last_match[1], 'Author URL', 90]
           elsif oembed_data['author_name'] && !oembed_data['author_name'].empty?

app/finders/users/wp_json_api.rb

@@ -44,7 +44,7 @@ module WPScan
 
           json = JSON.parse(response.body)
 
-          if json.is_a? Enumerable
+          if json.is_a?(Enumerable)
             json.each do |user|
               found << Model::User.new(user['slug'],
                                       id: user['id'],