CVE-2026-18779: Unknown Truebooker

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

The TrueBooker WordPress plugin before 1.2.7 does not have proper authorisation checks in one of its AJAX actions, allowing unauthenticated users to delete arbitrary appointment records along with their associated booking items and payment records.

Affected products

• Unknown Truebooker: before 1.2.7 (fixed in 1.2.7)

Published 2026-08-19. Last modified 2026-08-26.