If you use modsecurity2 Plugin Filter on a Apache2 / Apache24 Setup then on my Blogs Gutenberg fails to SAVE Pages and Drafts.
Update 12-2025 : Hardening with mod_security2 and mod_evasive must be customized for the WordPress Block Editor called Gutenberg!
Workaround:
- Install the old but useful “Classic Editor Plugin” and replace Gutenberg for all Users!
- This Light editor offers enough to blog fast and he uses less APIs to WordPress and works with outdated Browsers on “old” Devices which cant be updated!
Background:
- It seems the lastest stable mod_security2 Rules not modified for Gutenberg post urls!
- Gutenberg rquests many REST-APIs on WordPress this is seen by hardening tools as DOS Attack
- Try to whitelist small IP Range for Edit the Pages