When CKEditor loads, a warning is returned: > This CKEditor 4.14.0 version is not secure. Consider [upgrading to the latest one](https://ckeditor.com/ckeditor-4-support/), 4.25.1-lts. This obviously requires upgrading to a later version of CKEditor. This is defined in the [`HtmlAttributeDescriptorViewModel`](/OnTopicCMS/OnTopic-Editor-AspNetCore/blob/master/OnTopic.Editor.AspNetCore.Attributes/HtmlAttribute/HtmlAttributeDescriptorViewModel.cs), via the [`RegisterResources()`](/OnTopicCMS/OnTopic-Editor-AspNetCore/blob/master/OnTopic.Editor.AspNetCore.Attributes/HtmlAttribute/HtmlAttributeDescriptorViewModel.cs#L48) method.
When CKEditor loads, a warning is returned:
This obviously requires upgrading to a later version of CKEditor. This is defined in the
HtmlAttributeDescriptorViewModel, via theRegisterResources()method.