CVE-2026-52837

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/alextselegidis/easyappointments/commit/40bb0b31b531540bc9006efce4220eb0a437ed2b
https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-xgr6-pqjv-3pf8
https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-xgr6-pqjv-3pf8

Configurations

No configuration.

History

24 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Easy!Appointments es un programador de citas autoalojado. En versiones hasta la 1.5.2 inclusive, la vista de reprogramación de reservas en “/index.php/booking/reschedule/{appointment_hash}” (gestionada por “Booking::index()”) incrusta el registro completo del cliente como JavaScript en línea (“const vars = {... ’customer_data’: {...}, ...}”) sin autenticación y sin lista blanca de campos. Cualquiera en posesión del “appointment_hash” de 12 caracteres - que aparece en texto plano en correos electrónicos de reprogramación, URL de páginas de confirmación y enlaces de calendario del lado del operador - puede leer cada columna de la fila de ese cliente en la tabla “ea_users”. La versión 1.6.0 contiene un parche.

Information

Published : 2026-07-14 15:17

Updated : 2026-10-24 21:10

NVD link : CVE-2026-52837

Mitre link : CVE-2026-52837

CVE.ORG link : CVE-2026-52837

JSON object : View

Products Affected

No product.

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-639

Authorization Bypass Through User-Controlled Key

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