diff --git a/app/conference_centers/conference_center_edit.php b/app/conference_centers/conference_center_edit.php
index 6f33ca7ccb..1f663562b8 100644
--- a/app/conference_centers/conference_center_edit.php
+++ b/app/conference_centers/conference_center_edit.php
@@ -17,7 +17,7 @@
 
 	The Initial Developer of the Original Code is
 	Mark J Crane <markjcrane@fusionpbx.com>
-	Portions created by the Initial Developer are Copyright (C) 2008-2016
+	Portions created by the Initial Developer are Copyright (C) 2008-2018
 	the Initial Developer. All Rights Reserved.
 
 	Contributor(s):
@@ -256,7 +256,7 @@
 	echo "	".$text['label-conference_center_name']."\n";
 	echo "</td>\n";
 	echo "<td class='vtable' align='left'>\n";
-	echo "	<input class='formfld' type='text' name='conference_center_name' maxlength='255' value=\"$conference_center_name\">\n";
+	echo "	<input class='formfld' type='text' name='conference_center_name' maxlength='255' value=\"".escape($conference_center_name)."\">\n";
 	echo "<br />\n";
 	echo $text['description-conference_center_name']."\n";
 	echo "</td>\n";
@@ -267,7 +267,7 @@
 	echo "	".$text['label-conference_center_extension']."\n";
 	echo "</td>\n";
 	echo "<td class='vtable' align='left'>\n";
-	echo "	<input class='formfld' type='text' name='conference_center_extension' maxlength='255' value=\"$conference_center_extension\">\n";
+	echo "	<input class='formfld' type='text' name='conference_center_extension' maxlength='255' value=\"".escape($conference_center_extension)."\">\n";
 	echo "<br />\n";
 	echo $text['description-conference_center_extension']."\n";
 	echo "</td>\n";
@@ -278,7 +278,7 @@
 	echo "	".$text['label-conference_center_greeting']."\n";
 	echo "</td>\n";
 	echo "<td class='vtable' align='left'>\n";
-	//echo "	<input class='formfld' type='text' name='conference_center_greeting' maxlength='255' value=\"$conference_center_greeting\">\n";
+	//echo "	<input class='formfld' type='text' name='conference_center_greeting' maxlength='255' value=\"".escape($conference_center_greeting)."\">\n";
 	if (permission_exists('conference_center_add') || permission_exists('conference_center_edit')) {
 		echo "<script>\n";
 		echo "var Objs;\n";
@@ -366,10 +366,10 @@
 						echo "		<option value='".$_SESSION['switch']['recordings']['dir']."/".$_SESSION['domain_name']."/".$conference_center_greeting."' selected='selected'>".$ivr_menu_greet_long."</option>\n";
 					}
 					else if (substr($conference_center_greeting, -3) == "wav" || substr($conference_center_greeting, -3) == "mp3") {
-						echo "		<option value='".$conference_center_greeting."' selected='selected'>".$conference_center_greeting."</option>\n";
+						echo "		<option value='".escape($conference_center_greeting)."' selected='selected'>".escape($conference_center_greeting)."</option>\n";
 					}
 					else {
-						echo "		<option value='".$conference_center_greeting."' selected='selected'>".$conference_center_greeting."</option>\n";
+						echo "		<option value='".escape($conference_center_greeting)."' selected='selected'>".escape($conference_center_greeting)."</option>\n";
 					}
 					echo "</optgroup>\n";
 				}
@@ -387,7 +387,7 @@
 	echo "	".$text['label-conference_center_pin_length']."\n";
 	echo "</td>\n";
 	echo "<td class='vtable' align='left'>\n";
-	echo "  <input class='formfld' type='text' name='conference_center_pin_length' maxlength='255' value='$conference_center_pin_length'>\n";
+	echo "  <input class='formfld' type='text' name='conference_center_pin_length' maxlength='255' value='".escape($conference_center_pin_length)."'>\n";
 	echo "<br />\n";
 	echo $text['description-conference_center_pin_length']."\n";
 	echo "</td>\n";
@@ -423,7 +423,7 @@
 	echo "	".$text['label-conference_center_description']."\n";
 	echo "</td>\n";
 	echo "<td class='vtable' align='left'>\n";
-	echo "	<input class='formfld' type='text' name='conference_center_description' maxlength='255' value=\"$conference_center_description\">\n";
+	echo "	<input class='formfld' type='text' name='conference_center_description' maxlength='255' value=\"".escape($conference_center_description)."\">\n";
 	echo "<br />\n";
 	echo $text['description-conference_center_description']."\n";
 	echo "</td>\n";
@@ -431,8 +431,8 @@
 	echo "	<tr>\n";
 	echo "		<td colspan='2' align='right'>\n";
 	if ($action == "update") {
-		echo "			<input type='hidden' name='dialplan_uuid' value='$dialplan_uuid'>\n";
-		echo "			<input type='hidden' name='conference_center_uuid' value='$conference_center_uuid'>\n";
+		echo "			<input type='hidden' name='dialplan_uuid' value='".escape($dialplan_uuid)."'>\n";
+		echo "			<input type='hidden' name='conference_center_uuid' value='".escape($conference_center_uuid)."'>\n";
 	}
 	echo "			<input type='submit' class='btn' value='".$text['button-save']."'>\n";
 	echo "		</td>\n";