Can't access items, type and categories.

ModSecurity was enabled. I disabled it and everything seems back to normal. It's a bit weird because I have other Joomla setup with FLEXIcontent with ModSecurity and I have no issues.

Hello

mod_security is a set of customizable rules

are you using same rules everywhere ?

Also no need to guess
you can look at the logs to see which mod_security rule was triggered

I'll check that later. Thanks for your help!

In your
modsecurity.conf

you can add (change the path):

SecDebugLog /opt/modsecurity/var/log/debug.log
SecDebugLogLevel 3

www.feistyduck.com/library/modsecurity-h...ne/ch04-logging.html

Here's the rule that blocks Joomla when FLEXIcontent is installed:

981257: Detects MySQL comment-/space-obfuscated injections and backtick termination
Request: GET /administrator/
Action Description: Access denied with redirection to mydomain.com/ using status 302 (phase 2).
Justification: Pattern match "(?i:(?:,.?)\da-f\"'][\"' )|(?:\Wselect.+\W ?from)|((?:select|create|rename|truncate|load|alter|delete|update|insert|desc)\s?\(\s ?space\s*?\())" at REQUEST_COOKIES:fc_columnchooser.

This is an important rule and I don't want to deactivate it. Is there anything that can be done ?

Thanks.

Hello

that is the our columns cookie being save into Joomla session (database)

maybe i will look at it some time during week