From dd06eeea9959503905af1b47b7487d0090dcdb29 Mon Sep 17 00:00:00 2001
From: Thomas Heidrich <thomas.heidrich@gnuheidix.de>
Date: Tue, 7 Feb 2017 20:24:33 +0100
Subject: [PATCH] makes sure that only strings are being processed in
 searchTerm; strip_tags crashes in case it's getting an array

---
 serendipity_config.inc.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/serendipity_config.inc.php b/serendipity_config.inc.php
index 0d872268..59604965 100644
--- a/serendipity_config.inc.php
+++ b/serendipity_config.inc.php
@@ -427,7 +427,7 @@ if (!isset($serendipity['GET']['adminAction'])) {
 
 // Make sure this variable is always properly sanitized. Previously in compat.inc.php, but there LANG_CHARSET was not defined.
 if (isset($serendipity['GET']['searchTerm'])) {
-    $serendipity['GET']['searchTerm'] = serendipity_specialchars(strip_tags($serendipity['GET']['searchTerm']));
+    $serendipity['GET']['searchTerm'] = (is_string($serendipity['GET']['searchTerm']) ? serendipity_specialchars(strip_tags($serendipity['GET']['searchTerm'])) : '');
 }
 
 // Some stuff...