CVE-2026-27377

CVE-2026-27377 affects the WordPress plugin QuickCal – Appointment Booking Calendar for WordPress (versions

EUVD-2026-48154

Booking Agent Broken Access Control in QuickCal - Appointment Booking Calendar for WordPress = 1.0.16 versions...

WordPress Appointment Hour Booking plugin <= 1.5.86 - Cross Site Scripting (XSS) vulnerability

Cross Site Scripting XSS vulnerability discovered by Ananda Dhakal Patchstack in WordPress Plugin Appointment Hour Booking versions = 1.5.86...

Exploit for CVE-2026-16540

CVE-2026-16540 — Simply Schedule Appointments WPRESTServer:...

CVE-2026-11866

The Appointment Booking Plugin WordPress plugin before 5.6.3 does not validate a CSRF nonce on several state-changing actions handled by its central request dispatcher, allowing attackers to perform privileged actions, such as overwriting the booking-form configuration or disconnecting the...

EUVD-2026-44871

The Appointment Booking Plugin WordPress plugin before 5.6.3 does not validate a CSRF nonce on several state-changing actions handled by its central request dispatcher, allowing attackers to perform privileged actions, such as overwriting the booking-form configuration or disconnecting the...

CVE-2026-11866

The Appointment Booking Plugin WordPress plugin before 5.6.3 does not validate a CSRF nonce on several state-changing actions handled by its central request dispatcher, allowing attackers to perform privileged actions, such as overwriting the booking-form configuration or disconnecting the...

Information Exposure

Overview alextselegidis/easyappointments is a powerful Open Source Appointment Scheduler that can be installed on your server. Affected versions of this package are vulnerable to Information Exposure via the customers search endpoint. An attacker can access appointment hashes belonging to other...

CVE-2026-55651

Easy!Appointments is a self hosted appointment scheduler. In version 1.5.2, an Excessive Data Exposure vulnerability in the customers search endpoint allows an authenticated user to obtain appointment hashes belonging to other users. Using these hashes, an attacker can modify or delete appointmen...

CVE-2026-55651 Easy!Appointments Vulnerable to Appointments Takeover via Excessive Data Exposure

Easy!Appointments is a self hosted appointment scheduler. In version 1.5.2, an Excessive Data Exposure vulnerability in the customers search endpoint allows an authenticated user to obtain appointment hashes belonging to other users. Using these hashes, an attacker can modify or delete appointmen...

CVE-2026-55651

Easy!Appointments exposes an Excessive Data Exposure vulnerability in the customers search endpoint (affected in 1.5.2) that allows an authenticated user to obtain appointment hashes belonging to other users, enabling modification or deletion of others’ appointments and leading to an Appointments...

CVE-2026-55651 Easy!Appointments Vulnerable to Appointments Takeover via Excessive Data Exposure

Easy!Appointments is a self hosted appointment scheduler. In version 1.5.2, an Excessive Data Exposure vulnerability in the customers search endpoint allows an authenticated user to obtain appointment hashes belonging to other users. Using these hashes, an attacker can modify or delete appointmen...

CVE-2026-55651 Easy!Appointments Vulnerable to Appointments Takeover via Excessive Data Exposure

Easy!Appointments is a self hosted appointment scheduler. In version 1.5.2, an Excessive Data Exposure vulnerability in the customers search endpoint allows an authenticated user to obtain appointment hashes belonging to other users. Using these hashes, an attacker can modify or delete appointmen...

CVE-2026-52839 Easy!Appointments appointments/store and appointments/update allow cross-provider appointment injection — Authorization Bypass

Easy!Appointments is a self hosted appointment scheduler. Versions prior to 1.6.0 correctly filter provider-scoped appointments in the appointments/search response, proving that provider isolation is an intended security boundary. However, the direct mutation endpoints appointments/store and...

CVE-2026-52839 Easy!Appointments appointments/store and appointments/update allow cross-provider appointment injection — Authorization Bypass

Easy!Appointments is a self hosted appointment scheduler. Versions prior to 1.6.0 correctly filter provider-scoped appointments in the appointments/search response, proving that provider isolation is an intended security boundary. However, the direct mutation endpoints appointments/store and...

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/appointmenthash handled by Booking::index embeds the entire customer record as inline JavaScript const vars = ... "customerdata": ...,...

CVE-2026-52837 Easy!Appointments has unauthenticated customer PII disclosure on booking reschedule page

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/appointmenthash handled by Booking::index embeds the entire customer record as inline JavaScript const vars = ... "customerdata": ...,...

CVE-2026-52837

Summary: Easy!Appointments

CVE-2026-52837 Easy!Appointments has unauthenticated customer PII disclosure on booking reschedule page

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/appointmenthash handled by Booking::index embeds the entire customer record as inline JavaScript const vars = ... "customerdata": ...,...

PT-2026-58067

Name of the Vulnerable Software and Affected Versions Easy!Appointments versions prior to 1.6.0 Description An issue exists where the application fails to verify if the id users provider submitted to specific endpoints belongs to the current session. While provider isolation is maintained in sear...