Vulnerability in Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress — CVE-2026-94432
What to do now
Update Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress to 5.7.2 or later.
Affected versions
- Everything up to and including 5.7.1
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 Insecure Direct Object Reference in versions up to, and including, 5.7.1 via the OsPaypalConnectController::create_order_for_transaction() action registered as a public (unauthenticated) route through wp_ajax_nopriv_latepoint_route_call. The handler loads an OsInvoiceModel by a sequential integer 'invoice_id' with no access-key/UUID or ownership check (the sibling Stripe and Razorpay handlers require a 128-bit access-key UUID via OsInvoicesHelper::get_invoice_by_key), and then calls OsTransactionIntentHelper::create_or_update_transaction_intent() which persists a transaction intent tied to the target invoice's customer_id, order_id and charge_amount and regenerates its intent_key before the PayPal-configured guard is reached. This makes it possible for unauthenticated attackers to enumerate invoices belonging to arbitrary customers, create unauthorized transaction-intent rows linked to another customer's data, and overwrite the intent_key of any in-flight NEW-status transaction intent — invalidating the intent_key that legitimate Stripe/Razorpay flows are waiting on and breaking payment webhooks for those customers.
Sources
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.0/latepoint.php#L1072
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.0/lib/controllers/controller.php#L57
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.0/lib/controllers/paypal_connect_controller.php#L20
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.0/lib/controllers/paypal_connect_controller.php#L31
- https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.0/lib/helpers/transaction_intent_helper.php#L85
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3709058%40latepoint&new=3709058%40latepoint