Ticket #45845: 45845.2.diff

wp-includes/user.php

@@ -2320 +2320 @@
                 return new WP_Error( 'invalid_key', __( 'Invalid key' ) );
         }
 
-        $row = $wpdb->get_row( $wpdb->prepare( "SELECT ID, user_activation_key FROM $wpdb->users WHERE user_login = %s", $login ) );
+        $user = get_user_by( 'login', $login );
+        if ( false === $user ) {
+                return new WP_Error( 'invalid_key', __( 'Invalid key' ) );
+        }
+
+        $row = $user->data;
+
         if ( ! $row ) {
                 return new WP_Error( 'invalid_key', __( 'Invalid key' ) );
         }