CVE-2026-66620: Derek Herman Optiontree

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

Editor PHP Object Injection in OptionTree <= 2.7.3 versions.

Affected products

• Derek Herman Optiontree: up to and including 2.7.3

Published 2026-08-18. Last modified 2026-08-20.