CVE-2026-39764: Radiustheme Radius Booking — Booking Calendar For Appointments & Services

Critical severity, CVSS 9.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Unauthenticated SQL Injection in Radius Booking — Booking Calendar for Appointments &amp; Services <= 1.0.19 versions.

Affected products

• Radiustheme Radius Booking — Booking Calendar For Appointments &amp; Services: up to and including 1.0.19

Published 2026-10-06. Last modified 2026-10-06.