Hydra Booking <= 1.2.1 - Authenticated (Custom+) Insecure Direct Object Reference to Sensitive Information Exposure via 'booking_id' Parameter
Strategic Overview
- Status
- Patched in 1.2.2
- Affected Plugin
- Hydra Booking — Appointment Scheduling & Booking Calendar
- Affected Version
<= 1.2.1- CVSS
- 4.3Medium
- Weakness type
- CWE-639 · Authorization Bypass Through User-Controlled Key
- CVE
CVE-2026-12433
At a glance
CVE-2026-12433 is a medium-severity Authorization Bypass Through User-Controlled Key vulnerability in the Hydra Booking WordPress plugin, affecting versions <= 1.2.1. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Custom level or above. The issue is fixed in version 1.2.2; sites on affected versions should update now. Disclosed July 2026, reported by Quang.
Vulnerability Overview
The Hydra Booking – Appointment Scheduling & Booking Calendar plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 1.2.1 via the /wp-json/hydra-booking/v1/booking/details/{id} REST endpoint. This is due to the getBookingDetails() callback only enforcing the tfhb_manage_options capability via tfhb_manage_options_permission(), without verifying that the requested booking belongs to the currently authenticated host (the lookup in getBookingDetailsData() filters solely on the booking id supplied in the URL). This makes it possible for authenticated attackers, with Hydra Host-level access and above (a role created by the plugin which grants tfhb_manage_options), to view sensitive booking records belonging to other hosts, including attendee names, emails, phone numbers, addresses, meeting details, payment method and status, transaction history, and internal notes by iterating booking IDs.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.
CWE-639: Authorization Bypass Through User-Controlled Key
Hydra Booking <= 1.2.1 carries this weakness at getBookingDetails(), and reaching it takes an account at Custom level or above. Authorization bypass through a user-controlled key, often called insecure direct object reference, means the application looks up a record by an identifier from the request without checking that the caller owns it.
Changing a number in the request is enough to read or modify other users' records, which on commerce and membership sites means customer data. For Hydra Booking the fix is 1.2.2: builds <= 1.2.1 are affected, anything from 1.2.2 onward is not.
Remediation
Update to version 1.2.2, or a newer patched version
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Hydra Booking 1.2.2 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Hydra Booking — Appointment Scheduling & Booking Calendar
- 9.8CVE-2025-68027: Hydra Booking <= 1.1.32 Privilege Escalation
CVE-2025-68027 - 8.8CVE-2025-7689: Hydra Booking 1.1.0 - 1.1.18 Authenticated
CVE-2025-7689 - 7.2CVE-2026-57388: Hydra Booking Stored XSS
CVE-2026-57388 - 6.5CVE-2025-68055: Hydra Booking <= 1.1.32 SQL Injection
CVE-2025-68055 - 6.5CVE-2025-49378: Hydra Booking <= 1.1.10 SQL Injection
CVE-2025-49378 - 6.5CVE-2025-49323: Hydra Booking <= 1.1.10 SQL Injection
CVE-2025-49323 - 6.4CVE-2026-15948: Hydra Booking <= 1.2.2 Stored Cross-Site Scripting
CVE-2026-15948 - 6.4CVE-2026-39541: Hydra Booking <= 1.1.38 Stored Cross-Site Scripting
CVE-2026-39541
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