However, I have found another alternative for this purpose. You can use the Javascript (this is not a plug-in) from http://www.aridocean.com/illustrator-extended-select-script to select open path and unfilled path in Adobe Illustrator CC. The good thing about using this script is that it will not get outdated :)
Simply download the script and paste it into your Adobe Illustrator CC folder Presets/en_US/Scripts. Restart your Illustrator and you will be able to use it under Files > Scripts > ExtendedSelect
Many thanks to Arid Ocean Maps for this wonderful scripts.