I have to work on a website, but I cannot connect to the WordPress Administration... I did a forget password and resetted the password multiple times so I know that I have the right username/password combination, but I still cannot connect.
Anytime I try to connect, it comes back to the wp-login page with a blank error message.
Tried to update my WP installation, didn't fix the problem (site is now running WP 4.2.2)
The blank message appears with both a correct and incorrect login.
I have no idea what might cause this problem, can somebody help?