Quick answer
– looking at source code – if you have not disabled or deleted WP generator, it will generate your version in source
– checking what plugins and versions of those plugins you are using in the site thru variety of means
etc
Moderator
Jan Dembowski
(@jdembowski)
Forum Moderator and Brute Squad
Look in the file wp-includes/version.php for the $wp_version, that will tell you.
