Online Scheduling and Appointment Booking System – Bookly <= 27.7 - Authenticated (Staff+) Insecure Direct Object Reference to Sensitive Information Exposure via 'params[id]' Parameter
| CVE | CVE-2026-12905 |
|---|---|
| CVSS | 4.3 (Medium) |
| Publicly Published | August 15, 2026 |
| Last Updated | August 16, 2026 |
| Researcher |
Raihan Adi Arba
|
Description
The Bookly plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 27.7 via the appointment() method of the Mobile Staff Cabinet API (resource=appointment, action=bookly_mobile_staff_cabinet) in frontend/modules/mobile_staff_cabinet/api/handlers/Handler1_0.php. This is due to the handler loading an Appointment by the attacker-supplied params[id] without verifying that the appointment's staff_id matches the authenticated staff member, whereas sibling operations (deleteAppointment, saveAppointment, appointments list) correctly scope to $this->staff->getId() when $this->role === ROLE_STAFF. This makes it possible for authenticated attackers, with staff-level mobile cabinet access (any valid access_key token bound to a Staff entity), to read appointment details — including the internal note and the full customer_appointments collection (customer full_name, email, phone, notes, custom_fields, extras, payment_total, payment_type, payment_status) — belonging to other staff members by enumerating sequential appointment IDs.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for Online Scheduling and Appointment Booking System – Bookly
| Software Type | Plugin |
|---|---|
| Software Slug | bookly-responsive-appointment-booking-tool (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 28.0, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Online Scheduling and Appointment Booking System – Bookly
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