MetForm: Unauthenticated form-submission disclosure
The MetForm WordPress plugin before 4.3.1 does not properly restrict access to form submission data, allowing unauthenticated attackers to view submitter information through the REST API. The authoritative export does not identify the specific REST route or exposed fields. The authoritative export identifies the fixed release as 4.3.1.
- Component
- MetForm
- Plugin slug
metform- Affected
- < 4.3.1
- Safe version
4.3.1- Published
- Oct 03, 2026
This CVE was published Oct 03, 2026 and is one of 29 known issues for this plugin.
Update, patch or deactivate.
Update MetForm to 4.3.1 or a later supported release. An application-level fix should require an appropriate capability and object-level authorization before returning form submissions through REST routes.
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 MetForm WordPress plugin before 4.3.1 does not properly restrict access to form submission data, allowing unauthenticated attackers to view submitter information through the REST API.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N