What happened?

1. Open Joomla media manager
2. Upload appropriately sized JPG file
3. Confirm upload

Version

6.1

Expected result

Files should be accessible via URL and have working previews in the media manager

Actual result

Files upload, but have permissions of -rw------- (i.e. mode 0600), whereas they should be 0644. Changing them to the intended permissions manually fixes the issue straight away.

System Information

systeminfo-2026-09-03T11_01_28+00_00.txt

Additional Comments

These examples/sysinfo is from our siteGround hosting environment, I can also provide examples where this is occurring on a nameCheap setup too. I believe this is down to lack of explicit permission assignment, our hosting provider seem to be tightening up their server security regime, as similar issues have come up in other areas too.

I have also raised this issue with Gantry 5, as they have their own Joomla image uploader (gantry/gantry5#3395) - and it is set to go into production.

Let me know if any more information or debugging is needed, thanks!