CVE-2026-86832: Unknown Metform

Medium severity, CVSS 5.3. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Unknown Metform: before 4.3.1 (fixed in 4.3.1)

Published 2026-10-03. Last modified 2026-10-06.