Disallowed file names
One word or phrase per line. Matching substrings in basenames become underscores — uploads are not rejected.
Disallowed file names
One word or phrase per line. Each case-insensitive substring match in the stored basename is replaced with underscores.
Where to find it
Admin → Settings → Files → Uploads → Disallowed file names
Setting key: fnames_not_allowed
How it works
This sanitizes the name — it does not reject the upload like extension lists do. Use for brand abuse or obvious spam tokens (example: warez).
Applied with filename handling after optional Sanitize filenames.
Common problems
Short words wreck normal filenames
Banning con or mp mangles lots of names. Prefer distinctive phrases.