diff --git a/addons/wiki/templates/edit.mako b/addons/wiki/templates/edit.mako
index e8a6d51ecdf..c4fd10d92da 100644
--- a/addons/wiki/templates/edit.mako
+++ b/addons/wiki/templates/edit.mako
@@ -269,6 +269,25 @@
       </div><!-- end row -->
     </div>
 
+    <div class="modal fade" id="closeConfirmModal" tabindex="-1">
+      <div class="modal-dialog">
+        <div class="modal-content">
+          <div class="modal-header">
+            <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
+            <h3 class="modal-title">${_("Unsaved Changes")}</h3>
+          </div>
+          <div class="modal-body">
+            <p>${_("Your changes have not been saved. Do you want to save before closing?")}</p>
+          </div>
+          <div class="modal-footer">
+              <button type="button" class="btn btn-default" data-dismiss="modal">${_("Cancel")}</button>
+              <button type="button" class="btn btn-danger" data-bind="click: discardAndClose">${_("Discard")}</button>
+              <button type="button" class="btn btn-success" data-bind="click: saveAndClose">${_("Save and Close")}</button>
+          </div>
+        </div>
+      </div>
+    </div>
+
   </div>
 </div><!-- end wiki -->
 
diff --git a/addons/wiki/tests/test_wiki.py b/addons/wiki/tests/test_wiki.py
index ed9e8dacc77..6daffd6dead 100644
--- a/addons/wiki/tests/test_wiki.py
+++ b/addons/wiki/tests/test_wiki.py
@@ -3340,6 +3340,31 @@ def test_bulk_update_wiki_sort(self):
         self.assertEqual(result_wiki_child_page2, {'parent_id': wiki_page2_id, 'sort_order': 1})
         self.assertEqual(result_wiki_child_page3, {'parent_id': wiki_child_page2_id, 'sort_order': 1})
 
+    def _wiki_sort_payload(self):
+        return {
+            'sortedData': [
+                {'name': 'wiki page1', 'id': self.guid1, 'sortOrder': 1, 'children': [], 'fold': False},
+                {'name': 'wiki page2', 'id': self.guid2, 'sortOrder': 2, 'children': [
+                    {'name': 'wiki child page1', 'id': self.child_guid1, 'sortOrder': 1, 'children': [], 'fold': False},
+                    {'name': 'wiki child page2', 'id': self.child_guid2, 'sortOrder': 2, 'children': [
+                        {'name': 'wiki child page3', 'id': self.child_guid3, 'sortOrder': 1, 'children': [], 'fold': False}
+                    ], 'fold': False}
+                ], 'fold': False}
+            ]
+        }
+
+    def test_project_update_wiki_page_sort_requires_login(self):
+        url = self.project.api_url_for('project_update_wiki_page_sort')
+        res = self.app.post_json(url, self._wiki_sort_payload(), expect_errors=True)
+        assert_equal(res.status_code, http_status.HTTP_401_UNAUTHORIZED)
+
+    def test_project_update_wiki_page_sort_requires_write_permission(self):
+        read_user = AuthUserFactory()
+        self.project.add_contributor(read_user, permissions=READ, auth=Auth(self.user))
+        url = self.project.api_url_for('project_update_wiki_page_sort')
+        res = self.app.post_json(url, self._wiki_sort_payload(), auth=read_user.auth, expect_errors=True)
+        assert_equal(res.status_code, http_status.HTTP_403_FORBIDDEN)
+
     def test_project_update_wiki_page_sort(self):
         url = self.project.api_url_for('project_update_wiki_page_sort')
         res = self.app.post_json(url, { 'sortedData': [{'name': 'wiki page1', 'id': self.guid1, 'sortOrder': 1, 'children': [], 'fold': False}, {'name': 'wiki page2', 'id': self.guid2, 'sortOrder': 2, 'children': [{'name': 'wiki child page1', 'id': self.child_guid1, 'sortOrder': 1, 'children': [], 'fold': False}, {'name': 'wiki child page2', 'id': self.child_guid2, 'sortOrder': 2, 'children': [{'name': 'wiki child page3', 'id': self.child_guid3, 'sortOrder': 1, 'children': [], 'fold': False}], 'fold': False}], 'fold': False}]}, auth=self.user.auth)
diff --git a/addons/wiki/tests/test_wiki_import.py b/addons/wiki/tests/test_wiki_import.py
index d8e55d1dc17..73fe2c3a941 100644
--- a/addons/wiki/tests/test_wiki_import.py
+++ b/addons/wiki/tests/test_wiki_import.py
@@ -2746,7 +2746,7 @@ def test_project_update_wiki_page_sort(self):
                     }
                 ]
             },
-            auth=self.auth
+            auth=self.user.auth
         )
         page_names = ['importpagea1', 'importpageb2', 'wiki child page1', 'wiki child page2', 'wiki child page3']
         result_list = list(WikiPage.objects.filter(page_name__in=page_names).order_by('page_name').values_list('page_name', 'parent_id', 'sort_order'))
diff --git a/addons/wiki/views.py b/addons/wiki/views.py
index 3ada8ed4b84..a1051ba9110 100644
--- a/addons/wiki/views.py
+++ b/addons/wiki/views.py
@@ -1368,6 +1368,8 @@ def set_wiki_import_task_proces_end(node):
     qs_alive_task.update(process_end=process_end)
 
 @must_be_valid_project  # returns project
+@must_have_permission(WRITE)  # returns user, project
+@must_not_be_registration
 @must_have_addon('wiki', 'node')
 def project_update_wiki_page_sort(node, **kwargs):
     data = request.get_json()
diff --git a/website/translations/ja/LC_MESSAGES/messages.po b/website/translations/ja/LC_MESSAGES/messages.po
index fe3c9a10b93..b8193edde4a 100644
--- a/website/translations/ja/LC_MESSAGES/messages.po
+++ b/website/translations/ja/LC_MESSAGES/messages.po
@@ -1224,6 +1224,22 @@ msgstr "重要な情報、リンク、または画像をここに追加して、
 msgid "Close"
 msgstr "閉じる"
 
+#: addons/wiki/templates/edit.mako:277
+msgid "Unsaved Changes"
+msgstr "未保存の変更"
+
+#: addons/wiki/templates/edit.mako:280
+msgid "Your changes have not been saved. Do you want to save before closing?"
+msgstr "編集内容は保存されていません。閉じる前に保存しますか？"
+
+#: addons/wiki/templates/edit.mako:284
+msgid "Discard"
+msgstr "破棄"
+
+#: addons/wiki/templates/edit.mako:285
+msgid "Save and Close"
+msgstr "保存して閉じる"
+
 #: addons/wiki/templates/edit.mako:218 addons/wiki/templates/edit.mako:225
 msgid "Compare"
 msgstr "比較"