Upgrading WP: Core, themes and plugins.

wordpress/wp-admin/load-scripts.php

@@ -114,8 +114,12 @@ function get_file($path) {
 	return @file_get_contents($path);
 }
 
-$load = preg_replace( '/[^a-z0-9,_-]+/i', '', $_GET['load'] );
-$load = explode(',', $load);
+$load = $_GET['load'];
+if ( is_array( $load ) )
+	$load = implode( '', $load );
+
+$load = preg_replace( '/[^a-z0-9,_-]+/i', '', $load );
+$load = array_unique( explode( ',', $load ) );
 
 if ( empty($load) )
 	exit;
@@ -125,7 +129,7 @@ require(ABSPATH . WPINC . '/version.php');
 
 $compress = ( isset($_GET['c']) && $_GET['c'] );
 $force_gzip = ( $compress && 'gzip' == $_GET['c'] );
-$expires_offset = 31536000;
+$expires_offset = 31536000; // 1 year
 $out = '';
 
 $wp_scripts = new WP_Scripts();