diff --git a/addons/website_event/models/event_event.py b/addons/website_event/models/event_event.py
index dd7fa17d63b..d901c8c92e4 100644
--- a/addons/website_event/models/event_event.py
+++ b/addons/website_event/models/event_event.py
@@ -97,7 +97,7 @@ class Event(models.Model):
             if event.menu_id and not event.website_menu:
                 event.menu_id.unlink()
             elif event.website_menu and not event.menu_id:
-                root_menu = self.env['website.menu'].create({'name': event.name, 'website_id': event.website_id.id})
+                root_menu = self.env['website.menu'].sudo().create({'name': event.name, 'website_id': event.website_id.id})
                 event.menu_id = root_menu
                 for sequence, (name, url, xml_id) in enumerate(event._get_menu_entries()):
                     event._create_menu(sequence, name, url, xml_id)
@@ -105,9 +105,9 @@ class Event(models.Model):
     def _create_menu(self, sequence, name, url, xml_id):
         if not url:
             self.env['ir.ui.view'].search([('name', '=', name + ' ' + self.name)]).unlink()
-            newpath = self.env['website'].new_page(name + ' ' + self.name, template=xml_id, ispage=False)['url']
+            newpath = self.env['website'].sudo().new_page(name + ' ' + self.name, template=xml_id, ispage=False)['url']
             url = "/event/" + slug(self) + "/page/" + newpath[1:]
-        menu = self.env['website.menu'].create({
+        menu = self.env['website.menu'].sudo().create({
             'name': name,
             'url': url,
             'parent_id': self.menu_id.id,
diff --git a/addons/website_sale/tests/test_website_sale_visitor.py b/addons/website_sale/tests/test_website_sale_visitor.py
index c18e7ae4843..7f24f33d618 100644
--- a/addons/website_sale/tests/test_website_sale_visitor.py
+++ b/addons/website_sale/tests/test_website_sale_visitor.py
@@ -14,11 +14,8 @@ class WebsiteSaleVisitorTests(TransactionCase):
 
     def test_create_visitor_on_tracked_product(self):
         self.WebsiteSaleController = WebsiteSale()
-        Visitor = self.env['website.visitor']
-        Track = self.env['website.track']
-
-        self.assertEqual(len(Visitor.search([])), 0, "No visitor at the moment")
-        self.assertEqual(len(Track.search([])), 0, "No track at the moment")
+        existing_visitors = self.env['website.visitor'].search([])
+        existing_tracks = self.env['website.track'].search([])
 
         product = self.env['product.product'].create({
             'name': 'Storage Box',
@@ -28,14 +25,18 @@ class WebsiteSaleVisitorTests(TransactionCase):
         with MockRequest(self.env, website=self.website):
             self.cookies = self.WebsiteSaleController.products_recently_viewed_update(product.id)
 
-        self.assertEqual(len(Visitor.search([])), 1, "A visitor should be created after visiting a tracked product")
-        self.assertEqual(len(Track.search([])), 1, "A track should be created after visiting a tracked product")
+        new_visitors = self.env['website.visitor'].search([('id', 'not in', existing_visitors.ids)])
+        new_tracks = self.env['website.track'].search([('id', 'not in', existing_tracks.ids)])
+        self.assertEqual(len(new_visitors), 1, "A visitor should be created after visiting a tracked product")
+        self.assertEqual(len(new_tracks), 1, "A track should be created after visiting a tracked product")
 
         with MockRequest(self.env, website=self.website, cookies=self.cookies):
             self.WebsiteSaleController.products_recently_viewed_update(product.id)
 
-        self.assertEqual(len(Visitor.search([])), 1, "No visitor should be created after visiting another tracked product")
-        self.assertEqual(len(Track.search([])), 1, "No track should be created after visiting the same tracked product before 30 min")
+        new_visitors = self.env['website.visitor'].search([('id', 'not in', existing_visitors.ids)])
+        new_tracks = self.env['website.track'].search([('id', 'not in', existing_tracks.ids)])
+        self.assertEqual(len(new_visitors), 1, "No visitor should be created after visiting another tracked product")
+        self.assertEqual(len(new_tracks), 1, "No track should be created after visiting the same tracked product before 30 min")
 
         product = self.env['product.product'].create({
             'name': 'Large Cabinet',
@@ -46,5 +47,7 @@ class WebsiteSaleVisitorTests(TransactionCase):
         with MockRequest(self.env, website=self.website, cookies=self.cookies):
             self.WebsiteSaleController.products_recently_viewed_update(product.id)
 
-        self.assertEqual(len(Visitor.search([])), 1, "No visitor should be created after visiting another tracked product")
-        self.assertEqual(len(Track.search([])), 2, "A track should be created after visiting another tracked product")
+        new_visitors = self.env['website.visitor'].search([('id', 'not in', existing_visitors.ids)])
+        new_tracks = self.env['website.track'].search([('id', 'not in', existing_tracks.ids)])
+        self.assertEqual(len(new_visitors), 1, "No visitor should be created after visiting another tracked product")
+        self.assertEqual(len(new_tracks), 2, "A track should be created after visiting another tracked product")