diff --git a/netbox/extras/tests/test_views.py b/netbox/extras/tests/test_views.py
index 9da6f047a54..91444e2ce94 100644
--- a/netbox/extras/tests/test_views.py
+++ b/netbox/extras/tests/test_views.py
@@ -1,11 +1,14 @@
 from django.contrib.contenttypes.models import ContentType
 from django.urls import reverse
+from django.test import tag
 
+from core.choices import ManagedFileRootPathChoices
 from core.events import *
 from core.models import ObjectType
 from dcim.models import DeviceType, Manufacturer, Site
 from extras.choices import *
 from extras.models import *
+from extras.scripts import Script as PythonClass, IntegerVar, BooleanVar
 from users.models import Group, User
 from utilities.testing import ViewTestCases, TestCase
 
@@ -897,3 +900,70 @@ def test_script_list_embedded_parameter(self):
         response = self.client.get(url, {'embedded': 'true'})
         self.assertEqual(response.status_code, 200)
         self.assertTemplateUsed(response, 'extras/inc/script_list_content.html')
+
+
+class ScriptValidationErrorTest(TestCase):
+    user_permissions = ['extras.view_script', 'extras.run_script']
+
+    class TestScriptMixin:
+        bar = IntegerVar(min_value=0, max_value=30, default=30)
+
+    class TestScriptClass(TestScriptMixin, PythonClass):
+        class Meta:
+            name = 'Test script'
+            commit_default = False
+            fieldsets = (("Logging", ("debug_mode",)),)
+
+        debug_mode = BooleanVar(default=False)
+
+        def run(self, data, commit):
+            return "Complete"
+
+    @classmethod
+    def setUpTestData(cls):
+        module = ScriptModule.objects.create(file_root=ManagedFileRootPathChoices.SCRIPTS, file_path='test_script.py')
+        cls.script = Script.objects.create(module=module, name='Test script', is_executable=True)
+
+    def setUp(self):
+        super().setUp()
+        Script.python_class = property(lambda self: ScriptValidationErrorTest.TestScriptClass)
+
+    @tag('regression')
+    def test_script_validation_error_displays_message(self):
+        from unittest.mock import patch
+
+        url = reverse('extras:script', kwargs={'pk': self.script.pk})
+
+        with patch('extras.views.get_workers_for_queue', return_value=['worker']):
+            response = self.client.post(url, {'debug_mode': 'true', '_commit': 'true'})
+
+        self.assertEqual(response.status_code, 200)
+        messages = list(response.context['messages'])
+        self.assertEqual(len(messages), 1)
+        self.assertEqual(str(messages[0]), "bar: This field is required.")
+
+    @tag('regression')
+    def test_script_validation_error_no_toast_for_fieldset_fields(self):
+        from unittest.mock import patch, PropertyMock
+
+        class FieldsetScript(PythonClass):
+            class Meta:
+                name = 'Fieldset test'
+                commit_default = False
+                fieldsets = (("Fields", ("required_field",)),)
+
+            required_field = IntegerVar(min_value=10)
+
+            def run(self, data, commit):
+                return "Complete"
+
+        url = reverse('extras:script', kwargs={'pk': self.script.pk})
+
+        with patch.object(Script, 'python_class', new_callable=PropertyMock) as mock_python_class:
+            mock_python_class.return_value = FieldsetScript
+            with patch('extras.views.get_workers_for_queue', return_value=['worker']):
+                response = self.client.post(url, {'required_field': '5', '_commit': 'true'})
+
+        self.assertEqual(response.status_code, 200)
+        messages = list(response.context['messages'])
+        self.assertEqual(len(messages), 0)
diff --git a/netbox/extras/views.py b/netbox/extras/views.py
index 32d19674b86..32f87fb9708 100644
--- a/netbox/extras/views.py
+++ b/netbox/extras/views.py
@@ -1485,6 +1485,15 @@ def post(self, request, **kwargs):
             )
 
             return redirect('extras:script_result', job_pk=job.pk)
+        else:
+            fieldset_fields = {field for _, fields in script_class.get_fieldsets() for field in fields}
+            hidden_errors = {
+                field: errors for field, errors in form.errors.items()
+                if field not in fieldset_fields
+            }
+            if hidden_errors:
+                error_msg = '; '.join(f"{field}: {', '.join(errors)}" for field, errors in hidden_errors.items())
+                messages.error(request, error_msg)
 
         return render(request, 'extras/script.html', {
             'object': script,