It is a common practice among security researched to release a proof of concept exploit after vendors and users have had ample opportunity to apply a patch. Doing so can encourage the remaining vendors or users to follow suit.
To use, auth_bypass.dll must be injected into wow.exe (versions 1.12.1, 2.4.3 and 3.3.5a are supported). An injector wowned.exe is included.
git clone https://github.com/namreeb/wowned && cd wowned
right click wowned.sln
then open with visual studio
Or Download here: https://github.com/namreeb/wowned/releases/download/0.4/0.4.7z