From b5c16a24c7d2bf3ab5b58cbccd9093a1ea0a171c Mon Sep 17 00:00:00 2001
From: Uwe Steinmann <steinm@debian.org>
Date: Mon, 31 Jul 2017 20:32:23 +0200
Subject: [PATCH] first check if $_GER[form] is set

---
 out/out.DropFolderChooser.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/out/out.DropFolderChooser.php b/out/out.DropFolderChooser.php
index e95ec0032..9320b1c14 100644
--- a/out/out.DropFolderChooser.php
+++ b/out/out.DropFolderChooser.php
@@ -26,7 +26,10 @@ include("../inc/inc.DBInit.php");
 include("../inc/inc.ClassUI.php");
 include("../inc/inc.Authentication.php");
 
-$form = preg_replace('/[^A-Za-z0-9_]+/', '', $_GET["form"]);
+if(isset($_GET["form"]))
+	$form = preg_replace('/[^A-Za-z0-9_]+/', '', $_GET["form"]);
+else
+	$form = '';
 
 if(substr($settings->_dropFolderDir, -1, 1) == DIRECTORY_SEPARATOR)
 	$dropfolderdir = substr($settings->_dropFolderDir, 0, -1);