Vulnerability in Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress — CVE-2026-103380
What to do now
Update Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress to 5.7.4 or later.
Affected versions
- Everything up to and including 5.7.3
Affected: Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress (plugin, latepoint)
What the vulnerability is
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.7.3 via the 'params[customer][first_name]' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract privileged booking data including the administrator-only admin_notes field, assigned agent internal contact details, transaction tokens, and payment request URLs delivered via rendered notification emails. A LatePoint customer can exploit this by storing a template placeholder such as {{customer_admin_notes}} in their own first_name field via the customer_cabinet__update route, then triggering the password-reset email flow to receive the expanded value in the resulting notification.
Sources
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.3/lib/controllers/customer_cabinet_controller.php#L321
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.3/lib/helpers/replacer_helper.php#L278
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.3/lib/helpers/replacer_helper.php#L614
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.3/lib/mailers/customer_mailer.php#L33
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.3/lib/models/customer_model.php#L388
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3728691%40latepoint&new=3728691%40latepoint