If your coffee maker pools water underneath after brewing the carafe side it's most likely a specific hose that gets loose where it connects to the spout on top. This will hopefully help you fix it.
The goal is to get the back off and you'll need a tri wing screwdriver for just one screw unless you don't making breaking some plastic. The rest are standard Philips head.
Step 1: The Bottom
On the bottom of the machine there are eight tri wing screws but the only one you need to remove is the bottom middle one shown on the second photo since the back panel is connected to it.
May not be a bad idea to take the whole back off though in case the hose connection on top isn't the issue for you. With the bottom off you can see the hot plate and water hoses.
Step 2: The Sides
You'll need to pull the sides away from the back panel to expose 4 screws. There's 4 tabs on each to push in with a flathead that will allow it to pull away.
Step 3: The Back
Once the sides are away there's five screws to remove. Two at the top with the head facing down and two and the bottom facing the back. The last one is below the carafe flap at the top and requires removing the cover at its hinge, but be careful there's two little platic tabs that break pretty easily. Now the back can slide down and expose the problem.
The hose feeding hot water up to the top of the machine isn't attached correctly, the metal clamp it comes with doesn't do the job so I added a zip tie VERY tightly as well. I say VERY because this is the second time I've done this.
Hope this helps you!