That said the problem may not even be the toilet.
Toilet leaking through floor to basement.
If there is a crack or dent in the toilet then flushing it will lead to water seeping through the floor to the basement.
If the toilet is leaking from the ceiling take a look at the area where the base of the bowl is connected to the floor.
Then follow our step by step instructions on our article.
Leave a gap in the caulk at the back of the base so if or when the toilet leaks at the floor gasket the leak will manifest without creating a mold farm or dripping through to the ceiling below etc.
There is a plastic flange that is cemented to floor that is used to bolt toilet down could that be causing it to leak.
The wood around it is all wet.
1st floor toilet leaking into basement.
Toilets tend to leak below typically into a basement and seeing cases where a toilet is actually leaking on to the floor is quite rare.
Any anomaly in these components can lead to toilet leaking into the basement.
Place the small container underneath the valve in case some water leaks into it while you do the repairs.
At times it is the excessive water pressure that forces water through the cracks.
A wax ring keeps the connection secure but this component can break or crack over time.
A friend and i have tried reseating the toilet 3 or 4 times even tried doubling the wax ring.
Hydrostatic pressure is the pressure that standing water creates.
Attached picture 2 is of the toilet and the tiled floor.
When you have water leaking into your basement between where the bottom of the wall and the floor meet this is caused by what is called hydrostatic pressure.
The damage from a toilet leaking at base if you neglect to repair your leaky toilet there can be some negative outcomes.
Also the water gushes through into the basement only when the toilet is flushed.
If there is any leaking that occurs in a toilet it would happen through the floor and not on the floor.
You can do this by turning the valve by the toilet base clockwise.
Note that there is no leakage spill on the tiled floor of the 1 2 bath when the toilet is flushed.
A toilet would actually never leak right onto the floor.