The Booktics – Booking Calendar for Appointments and Service Businesses plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 1.0.23. This is due to the create_order_permission() permission callback on the POST /wp-json/booktics/v1/orders REST route unconditionally returning true, combined with find_and_update_guest() overwriting an existing customer record's stored name, phone, and wp_user_id whenever the caller-supplied email matches, with no proof of ownership. This makes it possible for unauthenticated attackers to overwrite the contact details (name and phone) of any existing customer whose email address they know, poisoning downstream reminder emails, SMS, calendar invites, and CRM data.
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Affected Vendors & Products
References
History
Fri, 11 Sep 2026 04:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Booktics – Booking Calendar for Appointments and Service Businesses plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 1.0.23. This is due to the create_order_permission() permission callback on the POST /wp-json/booktics/v1/orders REST route unconditionally returning true, combined with find_and_update_guest() overwriting an existing customer record's stored name, phone, and wp_user_id whenever the caller-supplied email matches, with no proof of ownership. This makes it possible for unauthenticated attackers to overwrite the contact details (name and phone) of any existing customer whose email address they know, poisoning downstream reminder emails, SMS, calendar invites, and CRM data. | |
| Title | Booktics – Booking Calendar for Appointments and Service Businesses <= 1.0.23 - Missing Authorization | |
| Weaknesses | CWE-862 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Wordfence
Published: 2026-09-11T03:39:38.143Z
Updated: 2026-09-11T16:37:36.654Z
Reserved: 2026-06-06T09:47:28.518Z
Link: CVE-2026-11446
No data.
Status : Deferred
Published: 2026-09-11T04:17:17.197
Modified: 2026-09-11T17:17:07.800
Link: CVE-2026-11446
No data.