Well… For sure, to resolve the problem i didn’t had just to remove the plugin!… i had to clean up some files that were hacked/replaced by the exploit.
I understand that it is not something fun to deal with. I am sure you do not have bad intentions …. Maybe a crossing line in the WordPress core development and the development of the plugin opened for a while ( or might be still opened ) a window large enough to hack a wordpress installation…
On my server i have more than 15 websites. All of them had the same WordPress versions, All running on the same Apache, Php.ini files and configs…
The only 3 websites that were hacked had your plugin installed. So it took me a while to point out the problem.
Anyway… I had to comment this… this was too unusual to keep silence.
Hope the code is now fully protected for your actual users…
I have nothing against you and/or your plugin. I described a situation that happened to me.
See ya.