CVE-2019-15780: STRATEGY11 Formidable Form Builder

Critical severity, CVSS 9.8. EPSS: 2.4% chance of exploitation in the next 30 days.

The formidable plugin before 4.02.01 for WordPress has unsafe deserialization.

Affected products

• STRATEGY11 Formidable Form Builder: before 4.02.01 (fixed in 4.02.01)

Published 2019-08-29. Last modified 2026-06-17.