diff --git a/mod/quiz/classes/notification_helper.php b/mod/quiz/classes/notification_helper.php
index b977ddb2a61..07ef8a37172 100644
--- a/mod/quiz/classes/notification_helper.php
+++ b/mod/quiz/classes/notification_helper.php
@@ -153,8 +153,10 @@ class notification_helper {
 
         $stringparams = [
             'firstname' => $user->firstname,
-            'quizname' => $quiz->name,
-            'coursename' => $quizobj->get_course()->fullname,
+            'quizname' => format_string($quiz->name,
+                options: ['context' => $quizobj->get_context(), 'escape' => false]),
+            'coursename' => format_string($quizobj->get_course()->fullname,
+                options: ['context' => \context_course::instance($quizobj->get_course()->id), 'escape' => false]),
             'timeopen' => userdate($user->timeopen),
             'timeclose' => !empty($user->timeclose) ? userdate($user->timeclose) : get_string('statusna'),
             'url' => $url,
@@ -164,7 +166,7 @@ class notification_helper {
             'user' => \core_user::get_user($user->id),
             'url' => $url->out(false),
             'subject' => get_string('quizopendatesoonsubject', 'mod_quiz', $stringparams),
-            'quizname' => $quiz->name,
+            'quizname' => $stringparams['quizname'],
             'html' => get_string('quizopendatesoonhtml', 'mod_quiz', $stringparams),
         ];
 
diff --git a/mod/quiz/tests/notification_helper_test.php b/mod/quiz/tests/notification_helper_test.php
index 77aa80ea5e4..4b9082bd920 100644
--- a/mod/quiz/tests/notification_helper_test.php
+++ b/mod/quiz/tests/notification_helper_test.php
@@ -300,4 +300,64 @@ final class notification_helper_test extends \advanced_testcase {
         // Clear sink.
         $sink->clear();
     }
+
+    /**
+     * Test content filtering in the quiz open soon notification.
+     */
+    public function test_send_notification_to_user_filter_content(): void {
+        $this->resetAfterTest();
+
+        $generator = $this->getDataGenerator();
+        $clock = $this->mock_clock_with_frozen();
+        $sink = $this->redirectMessages();
+
+        filter_set_global_state('multilang', TEXTFILTER_ON);
+        filter_set_applies_to_strings('multilang', true);
+
+        // Create a course and enrol a student.
+        $course = $generator->create_course([
+            'fullname' => '<span class="multilang" lang="en">A&B (en)</span><span class="multilang" lang="es">A&B (es)</span>'
+        ]);
+        $student = $generator->create_user();
+        $generator->enrol_user($student->id, $course->id, 'student');
+
+        $quizgenerator = $generator->get_plugin_generator('mod_quiz');
+
+        // Create a quiz with an open date < 48 hours.
+        $quiz = $quizgenerator->create_instance([
+            'name' => '<span class="multilang" lang="en">C&D (en)</span><span class="multilang" lang="es">C&D (es)</span>',
+            'course' => $course->id,
+            'timeopen' => $clock->time() + DAYSECS,
+        ]);
+        $clock->bump(5);
+
+        // Run the tasks.
+        $this->run_notification_helper_tasks();
+
+        // Get the notifications that should have been created during the adhoc task.
+        $messages = $sink->get_messages_by_component('mod_quiz');
+
+        $message = reset($messages);
+
+        $subjectstringparams = [
+            'timeopen' => userdate($quiz->timeopen),
+            'quizname' => 'C&D (en)'
+        ];
+        $expectedsubject = get_string('quizopendatesoonsubject', 'mod_quiz', $subjectstringparams);
+
+        $fullmessagestringparams = array_merge($subjectstringparams, [
+            'firstname' => $student->firstname,
+            'coursename' => 'A&B (en)',
+            'timeclose' => !empty($quiz->timeclose) ? userdate($quiz->timeclose) : get_string('statusna'),
+            'url' => new \moodle_url('/mod/quiz/view.php', ['id' => $quiz->cmid])
+        ]);
+        $expectedfullmessage = get_string('quizopendatesoonhtml', 'mod_quiz', $fullmessagestringparams);
+
+        // Validate
+        $this->assertEquals($expectedsubject, $message->subject);
+        $this->assertEquals($expectedfullmessage, $message->fullmessagehtml);
+
+        // Clear sink.
+        $sink->clear();
+    }
 }