Fix #208 - Fixed vulnerable plugins still appear in the results

lib/common/collections/wp_items/detectable.rb

@@ -35,7 +35,9 @@ class WpItems < Array
 
           if target_item.exists?(exist_options, response)
             if !results.include?(target_item)
-              results << target_item
+              if !options[:only_vulnerable] || options[:only_vulnerable] && target_item.vulnerable?
+                results << target_item
+              end
             end
           end
         end

lib/common/models/wp_item/vulnerable.rb

@@ -21,6 +21,10 @@ class WpItem
       vulnerabilities
     end
 
+    def vulnerable?
+      vulnerabilities.empty? ? false : true
+    end
+
     # Checks if a item is vulnerable to a specific vulnerability
     #
     # @param [ Vulnerability ] vuln Vulnerability to check the item against