CVE-2025-54040: Webba Appointment Booking Webba Booking

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Missing Authorization vulnerability in Webba Appointment Booking Webba Booking webba-booking-lite allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Webba Booking: from n/a through <= 5.1.20.

Affected products

• Webba Appointment Booking Webba Booking: up to and including 5.1.20

Published 2025-08-20. Last modified 2026-06-17.