gitlab/packagist/alextselegidis/easyappointments/CVE-2026-52838
Easy!Appointments disable_booking_message rendered as raw HTML on public booking page — Stored XSS
Easy!Appointments allows administrators to define a custom "booking disabled" message through the booking settings page. That value is stored in the `disable_booking_message` setting via a rich-text editor and later passed directly to the public `booking_message` view without escaping or sanitization:
```php
<p><?= vars('message_text') ?></p>
```
An authenticated administrator can store HTML or JavaScript in this field, enable disabled-booking mode, and trigger stored XSS in every unauthenticated visitor who opens the public booking page.
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