Plugin updates, change file permissions on WordPress

Question

I have a strange problem with my wordpress websites. Every time I perform plugin updates, the file permissions on my server, are changed. I get the Forbidden error in my developer console for the plugins directory that I've just update .

I use a local server with Webmin/Virtualmin to managed all my wordpress websites. So, I have virtual host for every website, and I have the same problem with all of the websites.

After updating the plugins, I have to change the file permissions, with default permissions for the wordpress, and everything works.

This are my default permissions for every wordpress website

sudo find . -type d -exec chmod 775 {} \
sudo find . -type f -exec chmod 664 {} \

Answer 1

PROBLEM FOUND:

So the problem was in a separate config file. The websites were migrated from another hosting and that hosting had a separate config file which was required in the wp-config.php . I the other config file I found this settings:

define( 'FS_CHMOD_DIR', ( 0755 & ~ umask() ) );
define( 'FS_CHMOD_FILE', ( 0644 & ~ umask() ) );

I remove this 2 lines from config file, and everythig works fine !