Formie: Missing authorization in administrative settings allows low-privileged CP users to modify plugin configuration

Overview

Formie contains a missing authorization vulnerability in administrative settings routes. An authenticated, non-admin Craft CMS control panel user with limited Formie access could directly access Formie settings pages and modify global plugin configuration.

In affected versions, Formie settings-related control panel routes did not consistently enforce the required settings permission on the server side. A low-privileged Craft CMS control panel user with limited Formie access could access /admin/formie/settings, save changes to global plugin settings, and access /admin/formie/settings/import-export.

The issue has been fixed by enforcing the formie-accessSettings permission across Formie settings controllers and related settings actions.

Impact

An authenticated low-privileged CP user may be able to:

• Access Formie administrative settings.
• Modify global Formie plugin configuration.
• Access Formie import/export settings functionality.

This may allow configuration tampering and disruption of form-related workflows. Exploitation requires an authenticated Craft CMS control panel account.

Affected packages

• verbb/formie < 3.1.28

Remediation

Upgrade to a patched release:

• verbb/formie 3.1.28