Forminator permits unauthenticated multisite creation
Forminator before 1.57.1 creates multisite signups without checking whether network site registration is enabled. An unauthenticated visitor can create a new site on the WordPress multisite network and gain Administrator privileges on that site.
- Component
- Forminator Forms
- Plugin slug
forminator- Affected
- < 1.57.1
- Safe version
1.57.1- Published
- Aug 26, 2026
This CVE was published Aug 26, 2026 and is one of 47 known issues for this plugin.
Update, patch or deactivate.
Update to 1.57.1 or later and audit newly created multisite sites, their administrators, registrations, and network activity.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Forminator Forms WordPress plugin before 1.57.1 does not verify that site registration is enabled on the network before creating a site signup, allowing unauthenticated visitors to create a new site on a WordPress multisite network and gain administrator privileges on it.
CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N