DOWNLOAD LINK:
Changelog since April 2013:
Program does now check which version the server is running, and if not a vulnerable version,
gives you a warning message, and an option to do the process afterall (might take some time, but it may, or may not, work)...
~~~~~~WARNINGS~~~~~~
1. Check that every single admin/OP/Mod/Helper/Staff is OFFLINE! IMPORTANT!, because everyone can see it when it says "YOURNAME is now an OP!"
2. Be sure that the Server uses one of the latest versions of Bukkit, for Minecraft from 1.7.0 to 1.7.4!
~~~~~~TUTORIAL~~~~~~
1. Open the program and be sure to be logged in to minecraft on the server you want to be OP on.
2. Type in your Username and the server IP into the program by the name of "Force OP", or whatever I uploaded it as, does not matter.
3. Press Force OP
4. Watch as the magic happens within a few seconds! :D
By the way: Bukkit have been trying a lot to patch this, so therefore the process might take up to a minute (but not more than!).