CVE-2026-52837: Alextselegidis Easyappointments

Medium severity, CVSS 6.9. EPSS: 0.6% chance of exploitation in the next 30 days.

Easy!Appointments is a self hosted appointment scheduler. In versions up to and including 1.5.2, the booking reschedule view at `/index.php/booking/reschedule/{appointment_hash}` (handled by `Booking::index()`) embeds the entire customer record as inline JavaScript (`const vars = {... "customer_data": {...}, ...}`) without authentication and without field whitelisting. Anyone in possession of the 12-character `appointment_hash` — which appears in plain text in reschedule emails, confirmation page URLs, and operator-side calendar links — can read every column of that customer's row in the `ea_users` table. Version 1.6.0 contains a patch.

Affected products

• Alextselegidis Easyappointments: before 1.6.0 (fixed in 1.6.0)

Published 2026-07-14. Last modified 2026-07-29.