Board Thread:Support Requests - Community Management/@comment-27108700-20160214001759/@comment-4970747-20160214002316

I'm not certain that there is a function for this, however I'm 99% certain that MediaWiki will translate a URL ending in an image extension into the image itself. So it is possible to link images from other sites, there's just no inbuilt way of doing this.

EDIT: Just linking to the image works, however you'll need to make sure it's the raw image rather than a browser photo viewer. Unfortunately, there's no way of resizing these images, so you'll have to scale it inside a DIV.