From 3b7b4312cb1e5321040e97956e8a37860f5cb4c2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=BCdiger=20Hahn?= <ruediger@hahnsworld.net>
Date: Fri, 9 Oct 2020 11:13:11 +0200
Subject: [PATCH] Fix for #14957 and probably a lot of other issues

Convert special characters for a valid use in xml documents
---
 htdocs/includes/odtphp/odf.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/htdocs/includes/odtphp/odf.php b/htdocs/includes/odtphp/odf.php
index 45e442462b4..d84559eb459 100644
--- a/htdocs/includes/odtphp/odf.php
+++ b/htdocs/includes/odtphp/odf.php
@@ -141,6 +141,7 @@ class Odf
 			//}
 		}
 
+		$value = $encode ? htmlspecialchars($value) : $value;
 		$value = ($charset == 'ISO-8859') ? utf8_encode($value) : $value;
 
 		// Check if the value includes html tags