From 4e1f22bf78e832f2d71d073126a2a2b103e45d1f Mon Sep 17 00:00:00 2001
From: Joe McGill <joemcgill@gmail.com>
Date: Mon, 10 Apr 2017 01:28:47 +0000
Subject: [PATCH] Fix broken audio/video functions when sanitizing ID3 data

This fixes a bug where running `wp_kses_post_deep()` on all the ID3
tag data corrupted blob data.

Fixes #40075, #40085.

Built from https://develop.svn.wordpress.org/trunk@40400


git-svn-id: http://core.svn.wordpress.org/trunk@40307 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-admin/includes/media.php | 6 +-----
 wp-includes/version.php     | 2 +-
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/wp-admin/includes/media.php b/wp-admin/includes/media.php
index d2f4854a2c..c4090174fa 100644
--- a/wp-admin/includes/media.php
+++ b/wp-admin/includes/media.php
@@ -2982,7 +2982,7 @@ function wp_add_id3_tag_data( &$metadata, $data ) {
 		if ( ! empty( $data[$version]['comments'] ) ) {
 			foreach ( $data[$version]['comments'] as $key => $list ) {
 				if ( 'length' !== $key && ! empty( $list ) ) {
-					$metadata[$key] = reset( $list );
+					$metadata[$key] = wp_kses_post( reset( $list ) );
 					// Fix bug in byte stream analysis.
 					if ( 'terms_of_use' === $key && 0 === strpos( $metadata[$key], 'yright notice.' ) )
 						$metadata[$key] = 'Cop' . $metadata[$key];
@@ -3072,8 +3072,6 @@ function wp_read_video_metadata( $file ) {
 
 	wp_add_id3_tag_data( $metadata, $data );
 
-	$metadata = wp_kses_post_deep( $metadata );
-
 	return $metadata;
 }
 
@@ -3119,8 +3117,6 @@ function wp_read_audio_metadata( $file ) {
 
 	wp_add_id3_tag_data( $metadata, $data );
 
-	$metadata = wp_kses_post_deep( $metadata );
-
 	return $metadata;
 }
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 1cde66f5a1..751ae5dc7f 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-alpha-40399';
+$wp_version = '4.8-alpha-40400';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.