403 Forbidden

Hi,
when I try to update the page I get the 403 Forbidden error, it happen only in the online version of my site, I have a local version and it works. Both versions are the same (local is just a backup of the remote), also php and wp are the same. Debug won’t show. If I try to make a new page it does work, updating it also. But If I try to edit an old page it does not.

EDIT: after I’ve re-done the homepage from scartch, and published it, it started giving me 403 again. I tried deactivating all the plugins (even security) but got the same error.

EDIT2: After disabling the firewall of the site, I looked in the log and saw this error [client 31.44.170.45] ModSecurity: [file "/etc/httpd/conf/modsecurity.d/rules/tortix/modsec/50_plesk_basic_asl_rules.conf"] [line "258"] [id "33350147"] [rev "143"] [msg "Protected by Atomicorp.com Basic Non-Realtime WAF Rules: Potentially Untrusted Web Content Detected"] [data "/wp-admin/post.php"] [severity "CRITICAL"] Access denied with code 403 (phase 2). Match of "rx ((?:submit(?:\\\\+| )?(request)?(?:\\\\+| )?>+|<<(?:\\\\+| )remove|(?:sign ?in|log ?(?:in|out)|next|modifier|envoyer|add|continue|weiter|account|results|select)?(?:\\\\+| )?>+)$|^< ?\\\\??(?: |\\\\+)?xml|^<samlp|^>> ?$)" against "ARGS:meta[28363][value]" required. [hostname ""] [uri "/wp-admin/post.php"] [unique_id "8whQAxxxxxxxxxxxAAJg"], referer: https://www.xxxxx.it/wp-admin/post.php?post=4609&action=edit
It might be usefull if you plan to fix this…

• This topic was modified 7 years, 4 months ago by artemis21.
• This topic was modified 7 years, 4 months ago by artemis21.
• This topic was modified 7 years, 4 months ago by artemis21.

The page I need help with: [log in to see the link]