Ticket #10656: 10656.patch

wp-admin/includes/post.php

@@ -559 +559 @@
 
         $metakeyselect = isset($_POST['metakeyselect']) ? stripslashes( trim( $_POST['metakeyselect'] ) ) : '';
         $metakeyinput = isset($_POST['metakeyinput']) ? stripslashes( trim( $_POST['metakeyinput'] ) ) : '';
-        $metavalue = isset($_POST['metavalue']) ? maybe_serialize( stripslashes( trim( $_POST['metavalue'] ) ) ) : '';
+        if (isset($_POST['metavalue'])) {
+                if (is_string($_POST['metavalue']) == true)
+                        $_POST['metavalue'] = stripslashes( trim( $_POST['metavalue'] ) );
 
+                $metavalue = maybe_serialize( $_POST['metavalue'] );
+        } else {
+                $metavalue = '';
+        }
+
         if ( ('0' === $metavalue || !empty ( $metavalue ) ) && ((('#NONE#' != $metakeyselect) && !empty ( $metakeyselect) ) || !empty ( $metakeyinput) ) ) {
                 // We have a key/value pair. If both the select and the
                 // input for the key have data, the input takes precedence:
@@ -686 +693 @@
         $post_id = $wpdb->get_var( $wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_id = %d", $meta_id) );
         wp_cache_delete($post_id, 'post_meta');
 
-        $meta_value = maybe_serialize( stripslashes( $meta_value ) );
+        if (is_string($meta_value) == true)
+                $meta_value = stripslashes( $meta_value );
+
+        $meta_value = maybe_serialize( $meta_value ); 
         $meta_id = (int) $meta_id;
 
         $data  = compact( 'meta_key', 'meta_value' );