Saving an entry with multiple parentheses (in a redactor field) throw a 403. I know it's from ModSecurity - but never experienced that behaviors with another CMS (WP, Kirby, etc.) or with Craft2. This issue appears on 2 (different) projects in development.

Is anyone got something similar?

Field details:

  • Clean up HTML : checked
  • Purify HTML : checked
  • HTML Purifier Config : Default
  • Column Type : 64KB

PS. If I remove the () from the text or replace them with brackets [], the entry saved correctly. We experienced that issue on multiple computers from different offices and didn't reproduce it on local environment (MAMP or XAMP) - so it's not machine/location oriented.

PPS. Deactivate ModSecurity is not a solution

1 Answer 1


If you check the ModSecurity logs, you can find exactly which of its rules Redactor/that POST request is tripping.

You can either modify that rule to allow it to pass or just disabled that specific rule.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.