I made a huge (well, sort of) misstake when I started a new game today. I mixed up my Int and Wis stats, so now I have a Mage with an truly awesome Int of 10, but at least he's quite wise, 18 Wis. ;) I want to swap these stats, but not sure how (don't dare to use Shadowkeeper since I heard it could bug up your game). Is it possible to change this with the console, and if, how do I do it?

regards,

CreateItem("book06")

But I want to lower my wisdom as well...

Go ahead and use Shadowkeeper. Simply changing your char's int and wis shouldn't bug your game.