diff --git a/t/Template/Utils.t b/t/Template/Utils.t
index 0f1a9ed307..a22683c53b 100755
--- a/t/Template/Utils.t
+++ b/t/Template/Utils.t
@@ -18,7 +18,8 @@
 # along with Koha; if not, see <http://www.gnu.org/licenses>.
 
 use Modern::Perl;
-use Test::More tests => 3;
+use Test::NoWarnings;
+use Test::More tests => 4;
 
 use utf8;
 
@@ -58,3 +59,24 @@ subtest 'Plugin related tests' => sub {
         "Processing template toolkit with a Koha plugin works"
     );
 };
+
+subtest 'Security-related tests' => sub {
+    plan tests => 2;
+
+    is(
+        Koha::TemplateUtils::process_tt(
+            q{[% USE dir = Directory('/') ~%]
+[% FOREACH entry IN dir.list ~%]
+<p>[%  entry.abs %]</p>
+[% END %]},
+        ),
+        q{},
+        "Plugins not allowed for User-entered TT"
+    );
+
+    is(
+        Koha::TemplateUtils::process_tt(q{[% USE raw %][% 'foo' | $raw %]}),
+        q{foo},
+        "Koha plugins are still available"
+    );
+};