Makes you wonder how many others are about to be pwnd. I believe Kansas uses a system that a lot of court systems used, from Tyler Technologies. There are stories about their systems being hacked before.
I don't have high expectations for the care invested in the code.
The bigger problem isn't being pwned in an embarrassing way like this. It's all the successful hacks into government systems which never get spotted or are never discussed at a level where they are likely to motivate positive change.