From: Alexander Ebert <ebert@woltlab.com>
Date: Mon, 5 Sep 2016 10:25:52 +0000 (+0200)
Subject: Fixed \u200B crashing every party
X-Git-Tag: 3.0.0_Beta_1~303
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6b7fa161ed4acfe36da0da7e33fb46f5bcd74f6a;p=GitHub%2FWoltLab%2FWCF.git

Fixed \u200B crashing every party
---

diff --git a/wcfsetup/install/files/lib/system/html/node/AbstractHtmlNodeProcessor.class.php b/wcfsetup/install/files/lib/system/html/node/AbstractHtmlNodeProcessor.class.php
index b2d70057ce..5c5cdaf5af 100644
--- a/wcfsetup/install/files/lib/system/html/node/AbstractHtmlNodeProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/html/node/AbstractHtmlNodeProcessor.class.php
@@ -53,6 +53,9 @@ abstract class AbstractHtmlNodeProcessor implements IHtmlNodeProcessor {
 		$this->document = new \DOMDocument('1.0', 'UTF-8');
 		$this->xpath = null;
 		
+		// strip UTF-8 zero-width whitespace
+		$html = preg_replace('~\x{200B}~u', '', $html);
+		
 		// Ignore all errors when loading the HTML string, because DOMDocument does not
 		// provide a proper way to add custom HTML elements (even though explicitly allowed
 		// in HTML5) and the input HTML has already been sanitized by HTMLPurifier.