CVE-2025-62738: Mmattax Formstack Online Forms

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Missing Authorization vulnerability in mmattax Formstack Online Forms formstack allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Formstack Online Forms: from n/a through <= 2.0.2.

Affected products

• Mmattax Formstack Online Forms: up to and including 2.0.2

Published 2025-12-09. Last modified 2026-10-07.