From subnets, I can access pfsense GUI by using my public address.

[mcury]

Found a strange behavior.. Not sure if this a security issue, or if I messed with something in my configuration.
From my WIFI vlan, I was able to open the pfsense GUI by using my WAN public address.

To stop this, I had to create a firewall rule to block WIFI to WAN address.

Is this a expected behavior?

[Derelict]

Yes. Block access to This Firewall (self).

[mcury]

Thanks for the reply Derelict.
I have been configuring my firewall rules since a long time, just blocking access to internal networks, including subnets gateway, ports 80,443,22.
Now, I will include block to wan address as well.