Mystery water intrusion

[Orlando Paz]

Although not directly related to a RE deal, this could easily be a situation a house flipper could encounter. A relative of mine recently had me come over to get my opinion on water that was seeping in between floor and molding. The water intrusion only happens when it rains heavily, as it was on that day. It was a pretty bad puddle in the room. I went outside and there was no sign of water build-up. There is no gutter throughout the house, so water backing up in the gutter is not the problem. There is no water damage seen, as a result of a leaking roof. My only guess is that the water might be permeating the concrete block wall. Has anyone experienced such a problem?