如何在CMS中处理图像，人们可以在其中编辑自己的html

We have a CMS where people can upload images. We currently don't offer a delete functionality, but it'd be nice to offer one. The problem with offering the delete functionality is that people might delete an image they don't need, but that same image might be used in someone else's article. Because people select the images with a WYSIWYG browser editor, we can not really easily track which image is used I think. We have a CMS where people can upload images. W