From f9fd129f28d1cf9d867fecd058d5cc3735073db8 Mon Sep 17 00:00:00 2001
From: Andrew Nacin <wp@andrewnacin.com>
Date: Tue, 25 Mar 2014 12:53:16 +0000
Subject: [PATCH] Allow XML attributes with colons to be read by kses.

The attribute would still need to be whitelisted to get through the filters.

props jorbin.
fixes #17847.

Built from https://develop.svn.wordpress.org/trunk@27707


git-svn-id: http://core.svn.wordpress.org/trunk@27546 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/kses.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/wp-includes/kses.php b/wp-includes/kses.php
index 45ee6f61b6..103e2e42a2 100644
--- a/wp-includes/kses.php
+++ b/wp-includes/kses.php
@@ -763,10 +763,10 @@ function wp_kses_hair($attr, $allowed_protocols) {
 		switch ($mode) {
 			case 0 : # attribute name, href for instance
 
-				if (preg_match('/^([-a-zA-Z]+)/', $attr, $match)) {
+				if ( preg_match('/^([-a-zA-Z:]+)/', $attr, $match ) ) {
 					$attrname = $match[1];
 					$working = $mode = 1;
-					$attr = preg_replace('/^[-a-zA-Z]+/', '', $attr);
+					$attr = preg_replace( '/^[-a-zA-Z:]+/', '', $attr );
 				}
 
 				break;