Yes it’s definitely possible, but I wouldn’t recommend it. By storing uploaded images on a server’s file system, you could be causing yourself grief later on down the road if your app needs to scale. If you need to horizontally scale (add more servers) at any point, you don’t want to have to worry about trying to keep your file system based files in synch between servers (solutions exist but they’re a pain to manage). Your best bet is to either use something like GridFS, or some other 3rd party file storage solution (like Amazon S3, filepicker.io/Filestack, Uploadcare, etc.).
You could write a small separate app to do this pretty easily. If you’re using cfs:grdfs you would likely want to leverage the cfs:ui helper package to render stored images in some sort of table/list for easy browsing/filtering/etc. You might also be able to leverage one of the many off the shelf Mongo GUI’s out there; I’m sure some of them support rendering GridFS stored images.