TinyMCE 403 on Classic Editor

@stephan-whelan I have not run into this issues and use TinyMCE boxes everywhere on some of our sites. It’s definitely a file permissions issue though. What hosting company are you with? Sounds like a common run-in I’ve had with sites on Cloudways if you ever ran the reset permissions tool. You may need to contact your hosting provider to run a batch chown against the WP directory to the proper user. If you’re a sudoer on your own server/vm then you would need to check and run that yourself. Hope that helps.

Please see https://www.ads-software.com/support/topic/text-is-blank-when-editing-pages-posts-or-woocommerce-products/. Seems the same issue, wp-tinymce.php is blocked by some misconfigured “security” measure.

@aedelgod – we’re on WP Engine – might be a file permission thing but let me chat to them and see what they say.

Spoke to WP Engine. The issue is trying to access this file: https://www.deeperblue.com/wp-includes/js/tinymce/wp-tinymce.php

They reset permissions on the files but nothing worked. They suggest it is a core product issue which I don’t agree with.

Any other ideas folks?

In previous threads some users reported they had an .htaccess file that blocks access to that file. Can also be cause by some WP security plugins, need to whitelist it there.

A final workaround would be to add define( 'SCRIPT_DEBUG', true ); to wp-config.php. That will slow down loading of all js and css but should fix this as then WP will load all TinyMCE scripts one by one and not use wp-tinymce.php.

Looks like there was a .htaccess file in wp-includes that had a deny all in there, removed that and it’s fixed! Thanks everyone

Glad you fixed it. Thanks for letting everybody know.