--- loncom/interface/lonsyllabus.pm	2022/09/18 22:33:45	1.151
+++ loncom/interface/lonsyllabus.pm	2022/10/27 20:33:31	1.152
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Syllabus
 #
-# $Id: lonsyllabus.pm,v 1.151 2022/09/18 22:33:45 raeburn Exp $
+# $Id: lonsyllabus.pm,v 1.152 2022/10/27 20:33:31 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -170,6 +170,7 @@ sub handler {
                 } else {
                     my $brcrum;
                     if ($env{'form.folderpath'} =~ /^supplemental/) {
+                        &Apache::loncommon::validate_folderpath(1,'',$cnum,$cdom);
                         my $title = $env{'form.title'};
                         if ($title eq '') {
                             $title = &mt('Syllabus');
@@ -205,6 +206,7 @@ sub handler {
                     $is_pdf = 1;
                 }
                 if ($env{'form.folderpath'} =~ /^supplemental/) {
+                    &Apache::loncommon::validate_folderpath(1,'',$cnum,$cdom);
                     my $title = $env{'form.title'};
                     if ($title eq '') {
                         $title = &mt('Syllabus');
@@ -763,6 +765,7 @@ sub get_breadcrumbs{
     my ($cdom,$cnum,$crstype,$args) = @_;
     return unless (ref($args) eq 'HASH');
     if ($env{'form.folderpath'} =~ /^supplemental/) {
+        &Apache::loncommon::validate_folderpath(1,'',$cnum,$cdom);
         my $title = $env{'form.title'};
         if ($title eq '') {
             $title = &mt('Syllabus');