Comments: Use `wp_strip_all_tags()` to strip HTML tags.

`wp_kses()` should only be used if you have a whitelist.

Props rachelbaker.
Fixes #37208.
Built from https://develop.svn.wordpress.org/trunk@38092


git-svn-id: http://core.svn.wordpress.org/trunk@38033 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/comment.php

@@ -1057,7 +1057,7 @@ function wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_age
 		return false; // If moderation keys are empty
 
 	// Ensure HTML tags are not being used to bypass the blacklist.
-	$comment_without_html = wp_kses( $comment, array() );
+	$comment_without_html = wp_strip_all_tags( $comment );
 
 	$words = explode("\n", $mod_keys );
 

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6-beta3-38091';
+$wp_version = '4.6-beta3-38092';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.