It doesn't appear to say that in so many words. You have to look at the issues and see if they are closed. They only one they still have open is the glossary one, which was closed in 1.4.2 (see Martin's post on this thread).
The 2 Blackboard holes and the one WebCT that are still open are pretty alarming, as there is no report whether this is closed in BB 6.1 or WebCT CE (and those are core holes, also, not ones you could address by disabling a module).
That you could access someone else's digital drop box by guessing the URI on Blackboard is particularly alarming. Now that I've seen this we are going to have to spend a bunch of time seeing whether it is fixed and figuring out what to do about it if it isn't.