Ticket #56311: 56311.diff

src/wp-includes/class-wp-date-query.php

@@ -384 +384 @@
                         'max' => 59,
                 );
 
+                $date_variable_keys = array(
+                        'month' => 'monthnum',
+                        'week' => 'w',
+                        'day' => 'day',
+                        'hour' => 'hour',
+                        'minute' => 'minute',
+                        'second' => 'second'
+                );
+
                 // Concatenate and throw a notice for each invalid value.
                 foreach ( $min_max_checks as $key => $check ) {
-                        if ( ! array_key_exists( $key, $date_query ) ) {
+                        if ( 
+                                ( isset($date_variable_keys[$key]) && isset($_GET[$date_variable_keys[$key]]) ) ||
+                                ! array_key_exists( $key, $date_query )
+                        ) {
                                 continue;
                         }