Is there any way of changing Wildfly's Management Realm's password through config files of some sort? I kinda lost my password (my LastPass add-on for Firefox is kinda messing up with me). If there is, how?
Passwords by default are stored in
$WILDFLY_HOME/standalone/configuration/mgmt-users.properties
but passwords are hashed. Best thing you can do is to remove the user you want and then re-add it via add-user.sh/.bat script you can find in bin folder.