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.
- Score
- CVSS 4.0 6.9 Medium
- Status
- Deferred - security-advisories@github.com
- Published
- 2026-07-14
- Last modified
- 2026-10-24
- Weaknesses
- CWE-200, CWE-639
Affected products
References
- https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-xgr6-pqjv-3pf8
- https://github.com/alextselegidis/easyappointments/commit/40bb0b31b531540bc9006efce4220eb0a437ed2b
