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-2026-52840 Easy!Appointments has server-side request forgery in CalDAV connection test that exposes the deployment's internal network

Easy!Appointments is a self hosted appointment scheduler. In versions prior to 1.6.0, Caldav::connecttoserver at application/controllers/Caldav.php:60 hands the request's caldavurl to a Guzzle REPORT call without scheme or host validation. A logged-in backend user admin, provider, or secretary...

CVE-2026-52840 Easy!Appointments has server-side request forgery in CalDAV connection test that exposes the deployment's internal network

Easy!Appointments is a self hosted appointment scheduler. In versions prior to 1.6.0, Caldav::connecttoserver at application/controllers/Caldav.php:60 hands the request's caldavurl to a Guzzle REPORT call without scheme or host validation. A logged-in backend user admin, provider, or secretary...

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-2026-52838 Easy!Appointments disable_booking_message rendered as raw HTML on public booking page — Stored XSS

Easy!Appointments is a self hosted appointment scheduler. Versions prior to 1.6.0 allow administrators to define a custom "booking disabled" message through the booking settings page. That value is stored in the disablebookingmessage setting via a rich-text editor and later passed directly to the...

CVE-2026-52838 Easy!Appointments disable_booking_message rendered as raw HTML on public booking page — Stored XSS

Easy!Appointments is a self hosted appointment scheduler. Versions prior to 1.6.0 allow administrators to define a custom "booking disabled" message through the booking settings page. That value is stored in the disablebookingmessage setting via a rich-text editor and later passed directly to the...

CVE-2026-52838

Affected software: Easy!Appointments (self-hosted appointment scheduler). Vulnerability: Stored XSS via the public booking page. An authenticated administrator can store HTML/JavaScript in the disable_booking_message setting (rich-text editor). The value is later passed directly to the public boo...

CVE-2026-52838 Easy!Appointments disable_booking_message rendered as raw HTML on public booking page — Stored XSS

Easy!Appointments is a self hosted appointment scheduler. Versions prior to 1.6.0 allow administrators to define a custom "booking disabled" message through the booking settings page. That value is stored in the disablebookingmessage setting via a rich-text editor and later passed directly to the...

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-2026-58069

Name of the Vulnerable Software and Affected Versions Easy!Appointments versions prior to 1.6.0 Description An issue exists where the Google::oauth function at application/controllers/Google.php:278 stores a URL-supplied provider id in the session. Subsequently, the oauth callback function saves...

PT-2026-58068

Name of the Vulnerable Software and Affected Versions Easy!Appointments versions prior to 1.6.0 Description An issue exists where the Caldav::connect to server function in application/controllers/Caldav.php processes the caldav url variable without validating the scheme or host. This allows an...

PT-2026-58044

Name of the Vulnerable Software and Affected Versions Easy!Appointments versions prior to 1.6.0 Description The booking reschedule view at the endpoint /index.php/booking/reschedule/appointment hash handled by the Booking::index function embeds the complete customer record as inline JavaScript...

PT-2026-58070

Name of the Vulnerable Software and Affected Versions Easy!Appointments versions prior to 1.6.0 Description An excessive data exposure issue in the customers search endpoint allows an authenticated user to obtain appointment hashes belonging to other users. An attacker can use these hashes to...

CVE-2026-59523

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through = 1.6.11.11...

CVE-2026-57812

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through = 1.6.12.4...

CVE-2026-59523

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through = 1.6.11.11...

CVE-2026-59523

CVE-2026-59523 affects the WordPress plugin Simply Schedule Appointments (

CVE-2026-57812

Summary: CVE-2026-57812 concerns the WordPress plugin “Simply Schedule Appointments.” In affected versions (up to and including 1.6.12.4), the issue is described as a Missing Authorization vulnerability caused by misconfigured access control within the Simply Schedule Appointments plugin, enablin...

CVE-2026-57812

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through = 1.6.12.4...