CVE-2019-15321: Optiontree Project Optiontree

Critical severity, CVSS 9.8. EPSS: 2.1% chance of exploitation in the next 30 days.

The option-tree plugin before 2.7.3 for WordPress has Object Injection because serialized classes are mishandled.

Affected products

• Optiontree Project Optiontree: before 2.7.3 (fixed in 2.7.3)

Published 2019-08-22. Last modified 2026-06-17.