Verbb · Formie · CVE-2026-45697
**Name of the Vulnerable Software and Affected Versions**
Formie versions prior to 2.2.20
Formie versions prior to 3.1.24
**Description**
Unauthenticated users can submit crafted values into Hidden fields configured with a Custom default value. These values are evaluated as Twig during submission handling, which may lead to a serious compromise of the Craft site depending on the template or sandbox behavior.
**Recommendations**
Update to version 2.2.20.
Update to version 3.1.24.
As a temporary workaround, remove Hidden fields from public forms or change the Hidden default value from Custom.