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CVE-2026-52837

MEDIUM
6.9
CVSS 4.0
Description
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.

Metadata

CVE ID
CVE-2026-52837
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-08 18:41 UTC
Published
2026-07-14 14:48 UTC
Last updated
2026-07-14 15:06 UTC
Primary CWE
CWE-200
CWE-200: Exposure of Sensitive Information to an Unauthorize…
Vendor / Product
alextselegidis / easyappointments
Sources
cve.org  ·  NVD

Severity & Metrics

6.9 MEDIUM CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products (1)
VendorProductPlatformVersions
alextselegidis easyappointments — < 1.6.0
Weakness (CWE)
CWESourceDescription
CWE-200 cna CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-639 cna CWE-639: Authorization Bypass Through User-Controlled Key
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.9 MEDIUM 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
References (2)
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