The problem I have is that media (images, pdf, etc) uploaded to a the main site (id=1) in a multisite are accessible from subsites’ domains. Subsites are mapped to different domains.
I upload an image to the main site media library and it can be accessed both at
even though it’s not visible in site2 media library.
Uploads Use Year month Folders is set to 0 in main site and 1 in subsites.
Read more here:: Main site media are accessible in subsite domain