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-rw-r--r--wp-includes/wpmu-functions.php4
1 files changed, 4 insertions, 0 deletions
diff --git a/wp-includes/wpmu-functions.php b/wp-includes/wpmu-functions.php
index a84be1d..c85d654 100644
--- a/wp-includes/wpmu-functions.php
+++ b/wp-includes/wpmu-functions.php
@@ -854,6 +854,10 @@ function wpmu_validate_user_signup($user_name, $user_email) {
}
$illegal_names = get_site_option( "illegal_names" );
+ if( is_array( $illegal_names ) == false ) {
+ $illegal_names = array( "www", "web", "root", "admin", "main", "invite", "administrator" );
+ add_site_option( "illegal_names", $illegal_names );
+ }
if( in_array( $user_name, $illegal_names ) == true ) {
$errors->add('user_name', __("That username is not allowed"));
}