full image path bypass permissions

[sensimilla]

First of all I cant post in bug & issues section here...

My problem is users that cant access full size photos in my gallery
just click on thumbnail source
http://forum.eroportal.org/gallery/files/2/0/Ashka_biel19_ero_thumb.jpg

edit the file name than get easily the full size pic

http://forum.eroportal.org/gallery/files/2/0/Ashka_biel19_ero.jpg

any way to fix this problem ?

TIA

[sensimilla]

No one ? Seems its a serious bug,