CVE-2025-12788mediumCWE-602

CVE-2025-12788: medium-severity vulnerability in themefic Hydra Booking — Appointment…

Hydra Booking – All in One Appointment Booking System | Appointment Scheduling, Booking Calendar & WooCommerce Bookings <= 1.1.27 - Missing Payment Verification to Unauthenticated Payment Bypass

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.3epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
themefic · Hydra Booking — Appointment Scheduling & Booking Calendar
Related CVEs — themefic Hydra Booking — Appointment…

In the same product, most dangerous first.

CVE-2026-12433MEDIUMHydra Booking <= 1.2.1 - Authenticated (Custom+) Insecure Direct Object Reference to Sensitive Information Exposure via 'booking_id' ParameterEPSS 0.5%CVE-2026-15948MEDIUMHydra Booking <= 1.2.2 - Authenticated (Host+) Stored Cross-Site Scripting via 'first_name' ParameterEPSS 0.4%CVE-2025-12787MEDIUMHydra Booking – All in One Appointment Booking System | Appointment Scheduling, Booking Calendar & WooCommerce Bookings <= 1.1.27 - Unauthenticated Arbitrary Booking Cancellation via Weak Hash GenerationEPSS 0.3%