CVE-2023-31047: Potential bypass of validation when uploading multiple files using one form field
Django changed the behaviour of fileinput to avoid the vulnerability. However, I don't know how to then create a widget for multiple files.
https://www.djangoproject.com/weblog/2023/may/03/security-releases/
See comments below for further information.
Relevant links:
https://github.com/advisories/GHSA-r3xc-prgr-mg9p
https://docs.djangoproject.com/en/3.2/topics/http/file-uploads/