CVE-2025-12788CWE-602

CVE-2025-12788

Medium · published November 11, 2025

CVSS v3.1
5.3
EPSS
0%
Percentile
27.3
In the wild
Unconfirmed
What it is

The Hydra Booking — Appointment Scheduling & Booking Calendar plugin for WordPress is vulnerable to missing payment verification to unauthenticated payment bypass in all versions up to, and including, 1.1.27. This is due to the plugin accepting client-controlled payment confirmation data in the tfhb_meeting_paypal_payment_confirmation_callback function without server-side verification with PayPal's API. This makes it possible for unauthenticated attackers to bypass payment requirements and confirm bookings as paid without any actual payment transaction occurring.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00349 · 27.3th percentile
Weakness
CWE-602 · Client-Side Enforcement of Server-Side Security
Published
2025-11-11T16:15Z
References (2)
EPSS history
Timeline
  • 11 NOV 11:03Z
    Hydra Booking – All in One Appointment Booking System | Appointment Scheduling, Booking Calendar & WooCommerce Bookings <= 1.1.27 - Missing Payment Verification to Unauthenticated Payment Bypass
    cvelistv5