CVE-2026-73364: Wpdesk Flexible Subscriptions

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Customer PHP Object Injection in Flexible Subscriptions <= 1.8.1 versions.

Affected products

• Wpdesk Flexible Subscriptions: up to and including 1.8.1

Published 2026-08-19. Last modified 2026-08-20.