Bookit — Booking & Appointment Calendar <= 2.6.0.5 - Unauthenticated Payment Bypass via 'payment_status' Parameter

Medium 5.3 CWE-915Fixed in 2.6.0.6
ID
WPSEC-2026-1142
Plugin
Bookit — Booking & Appointment Calendar (bookit)
Affected
all versions before 2.6.0.6
Remediation
Update to 2.6.0.6 or later.
CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-915
Usage
Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-16
Attack surface
Bookit — Booking & Appointment Calendar on WPSec AttackSurface
Fix released
Published

Description

The Bookit — Booking & Appointment Calendar plugin for WordPress is vulnerable to Payment Bypass via the 'payment_status' parameter of the public 'bookit_book_appointment' AJAX action in all versions up to, and including, 2.6.0.5, due to the booking handler passing every client-supplied POST field into the appointment data, including 'payment_status', which is then stored as the status of the booking's payment record. This makes it possible for unauthenticated attackers to create paid bookings that are recorded as already paid (complete) without making any payment.

References

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