Pun repository gives permissions 644 to image.php on my server (and all other files in entire forum folder tree, including all files in extensions folder, have 644 permissions).
All folders in extensions folder (entire tree) have 777 permissions if installed via repository. If installed manually folders have 755 permissions and files have 644.
I just did what you wrote in your previous post, but no luck.
I tried every possible combination of permissions on image.php. Nothing.
so there are combinations that work:
pun_antispam folder: 755
image.php: 655, 755, 644, 744, 455, 444
don't work
pun_antispam folder: 777
image.php: any
don't work
pun_antispam folder: 755
image.php: x6x, xx6, x7x, xx7
If you need any other info just ask. This is test instalation so we can play with it. I testing 1.3 becouse I considering to move one exixting 1.2.15 forum to 1.3 (and also change provider to new one, so I put test instalation on new server).