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'],

spec/app/finders/users/oembed_api_spec.rb

@@ -13,11 +13,19 @@ describe WPScan::Finders::Users::OembedApi do
     end
 
     context 'when not a JSON response' do
+      context 'when empty' do
         let(:body) { '' }
 
         its(:aggressive) { should eql([]) }
       end
 
+      context 'when a string' do
+        let(:body) { '404' }
+
+        its(:aggressive) { should eql([]) }
+      end
+    end
+
     context 'when a JSON response' do
       let(:body) { File.read(fixture) }
 

spec/app/finders/users/wp_json_api_spec.rb

@@ -20,16 +20,18 @@ describe WPScan::Finders::Users::WpJsonApi do
       end
 
       context 'when not a JSON response' do
+        context 'when empty' do
           let(:body) { '' }
 
           its(:aggressive) { should eql([]) }
         end
 
-      context 'when a string response' do
+        context 'when a string' do
           let(:body) { '404' }
 
           its(:aggressive) { should eql([]) }
         end
+      end
 
       context 'when a JSON response' do
         context 'when unauthorised' do