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Add some security hardening to passed playlist attributes. 

Props xknown.
See #26631.



git-svn-id: https://develop.svn.wordpress.org/trunk@27311 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Scott Taylor 2014-02-27 15:19:53 +00:00
parent 9bcb738064
commit ad0751a29c
1 changed files with 11 additions and 4 deletions
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13
src/wp-includes/media.php
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@ -1013,6 +1013,10 @@ function wp_get_playlist( $attr, $type ) {
$orderby = 'none';
}
if ( ! in_array( $style, array( 'light', 'dark' ), true ) ) {
$style = 'light';
}
$args = array(
'post_status' => 'inherit',
'post_type' => 'attachment',
@ -1113,13 +1117,16 @@ function wp_get_playlist( $attr, $type ) {
}
$data['tracks'] = $tracks;
$safe_type = esc_attr( $safe_type );
$safe_style = esc_attr( $style );
ob_start();
if ( 1 === $instance ):
wp_enqueue_style( 'wp-mediaelement' );
wp_enqueue_script( 'wp-playlist' );
?>
<!--[if lt IE 9]><script>document.createElement('<?php echo $type ?>');</script><![endif]-->
<!--[if lt IE 9]><script>document.createElement('<?php echo esc_js( $type ) ?>');</script><![endif]-->
<script type="text/html" id="tmpl-wp-playlist-current-item">
<# if ( data.image ) { #>
<img src="{{{ data.thumb.src }}}"/>
@ -1154,11 +1161,11 @@ function wp_get_playlist( $attr, $type ) {
</div>
</script>
<?php endif ?>
<div class="wp-playlist wp-<?php echo $type ?>-playlist wp-playlist-<?php echo $style ?>">
<div class="wp-playlist wp-<?php echo $safe_type ?>-playlist wp-playlist-<?php echo $safe_style ?>">
<?php if ( 'audio' === $type ): ?>
<div class="wp-playlist-current-item"></div>
<?php endif ?>
<<?php echo $type ?> controls="controls" preload="metadata" width="<?php echo $theme_width ?>"></<?php echo $type ?>>
<<?php echo $safe_type ?> controls="controls" preload="metadata" width="<?php echo (int) $theme_width ?>"></<?php echo $safe_type ?>>
<div class="wp-playlist-next"></div>
<div class="wp-playlist-prev"></div>
<noscript>