CVE-2026-12905 (GCVE-0-2026-12905)
Vulnerability from cvelistv5 – Published: 2026-08-16 04:24 – Updated: 2026-08-16 04:24
VLAI
EPSS
VEX
Title
Online Scheduling and Appointment Booking System – Bookly <= 27.7 - Authenticated (Staff+) Insecure Direct Object Reference to Sensitive Information Exposure via 'params[id]' Parameter
Summary
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.
Severity
4.3 (Medium)
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ladela | Online Scheduling and Appointment Booking System – Bookly |
Affected:
0 , ≤ 27.7
(semver)
|
{
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"version": "0",
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"type": "finder",
"value": "Raihan Adi Arba"
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}
],
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"shortName": "Wordfence"
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"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1600466e-ad45-4dc7-916b-6c97301d2b03?source=cve"
},
{
"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"
},
{
"url": "https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.7/frontend/modules/mobile_staff_cabinet/Ajax.php#L17"
},
{
"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"
},
{
"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"
},
{
"url": "https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/24.9/frontend/modules/mobile_staff_cabinet/Ajax.php#L17"
},
{
"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"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3637918%40bookly-responsive-appointment-booking-tool\u0026new=3637918%40bookly-responsive-appointment-booking-tool"
}
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"timeline": [
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"time": "2026-06-23T13:31:20.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-08-15T00:00:00.000Z",
"value": "Disclosed"
}
],
"title": "Online Scheduling and Appointment Booking System \u2013 Bookly \u003c= 27.7 - Authenticated (Staff+) Insecure Direct Object Reference to Sensitive Information Exposure via \u0027params[id]\u0027 Parameter"
}
},
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"cveId": "CVE-2026-12905",
"datePublished": "2026-08-16T04:24:49.949Z",
"dateReserved": "2026-06-22T14:40:37.356Z",
"dateUpdated": "2026-08-16T04:24:49.949Z",
"state": "PUBLISHED"
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"date": "2026-08-16",
"epss": "0.0029",
"percentile": "0.21524"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-12905\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2026-08-16T05:16:45.947\",\"lastModified\":\"2026-08-16T05:16:45.947\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"}],\"affected\":[{\"source\":\"security@wordfence.com\",\"affectedData\":[{\"vendor\":\"ladela\",\"product\":\"Online Scheduling and Appointment Booking System \u2013 Bookly\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"27.7\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-639\"}]}],\"references\":[{\"url\":\"https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/24.9/frontend/modules/mobile_staff_cabinet/Ajax.php#L17\",\"source\":\"security@wordfence.com\"},{\"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\",\"source\":\"security@wordfence.com\"},{\"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\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/browser/bookly-responsive-appointment-booking-tool/tags/27.7/frontend/modules/mobile_staff_cabinet/Ajax.php#L17\",\"source\":\"security@wordfence.com\"},{\"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\",\"source\":\"security@wordfence.com\"},{\"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\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3637918%40bookly-responsive-appointment-booking-tool\u0026new=3637918%40bookly-responsive-appointment-booking-tool\",\"source\":\"security@wordfence.com\"},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/1600466e-ad45-4dc7-916b-6c97301d2b03?source=cve\",\"source\":\"security@wordfence.com\"}]}}"
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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.
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.
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