CVE-2026-39663: Themetechmount Truebooker

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

Missing Authorization vulnerability in themetechmount TrueBooker truebooker-appointment-booking allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects TrueBooker: from n/a through <= 1.1.5.

Affected products

• Themetechmount Truebooker: up to and including 1.1.5

Published 2026-04-08. Last modified 2026-07-24.