GHSA-J9H8-CF5V-78MC
Vulnerability from github – Published: 2026-08-16 06:30 – Updated: 2026-08-16 06:30The 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.
{
"affected": [],
"aliases": [
"CVE-2026-12905"
],
"database_specific": {
"cwe_ids": [
"CWE-639"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-16T05:16:45Z",
"severity": "MODERATE"
},
"details": "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\u0027s staff_id matches the authenticated staff member, whereas sibling operations (deleteAppointment, saveAppointment, appointments list) correctly scope to $this-\u003estaff-\u003egetId() when $this-\u003erole === 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 \u2014 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) \u2014 belonging to other staff members by enumerating sequential appointment IDs.",
"id": "GHSA-j9h8-cf5v-78mc",
"modified": "2026-08-16T06:30:24Z",
"published": "2026-08-16T06:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12905"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/24.9/frontend/modules/mobile_staff_cabinet/Ajax.php#L17"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/24.9/frontend/modules/mobile_staff_cabinet/api/handlers/Handler.php#L82"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/24.9/frontend/modules/mobile_staff_cabinet/api/handlers/Handler1_0.php#L70"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.7/frontend/modules/mobile_staff_cabinet/Ajax.php#L17"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.7/frontend/modules/mobile_staff_cabinet/api/handlers/Handler.php#L82"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.7/frontend/modules/mobile_staff_cabinet/api/handlers/Handler1_0.php#L70"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3637918%40bookly-responsive-appointment-booking-tool\u0026new=3637918%40bookly-responsive-appointment-booking-tool"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1600466e-ad45-4dc7-916b-6c97301d2b03?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.