Hydra Booking – All in One Appointment Booking System | Appointment Scheduling, Booking…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
The Hydra Booking — Appointment Scheduling & Booking Calendar plugin for WordPress is vulnerable to unauthorized booking cancellation in all versions up to, and including, 1.1.27. This is due to the plugin's "tfhb_meeting_form_submit_callback" function using insufficiently random values to generate booking cancellation tokens, combined with a globally shared nonce. This makes it possible for unauthenticated attackers to cancel arbitrary bookings via brute force attacks against the tfhb_meeting_form_cencel AJAX endpoint.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-12787
- 2026-10-03 Alias added: GHSA-xj4g-rjq9-vrx7
References
Other 2
- https://www.wordfence.com/threat-intel/vulnerabilities/id/490dd84f-7c03-43c7-b4e1-167fa2b15c03?source=cve
- https://plugins.trac.wordpress.org/changeset/3392864/hydra-booking/tags/1.1.28/app/Shortcode/HydraBookingShortcode.php?old=3392467&old_path=hydra-booking%2Ftags%2F1.1.27%2Fapp%2FShortcode%2FHydraBookingShortcode.php
More Themefic vulnerabilities
- TI-2023-02626 Ultimate Addons for Contact Form 7 < 3.1.29 - Reflected XSS CVSS 3.1MEDIUM 6.1
- TI-2026-57195 Ultra Addons for Contact Form 7 <= 3.5.50 - Unauthenticated Arbitrary File Upload via Signature Form Field CVSS 3.1CRITICAL 9.8
- TI-2023-02625 Ultimate Addons for Contact Form 7 < 3.1.29 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
- TI-2026-83954 Arbitrary file deletion in Ultra Addons for Contact Form 7 CVSS 3.1CRITICAL 9.8
- TI-2024-19308 WordPress Tourfic plugin <= 2.11.15 - Arbitrary File Upload vulnerability CVSS 3.1CRITICAL 9.9
- TI-2022-23624 WordPress Ultimate Addons for Contact Form 7 Plugin <= 3.1.23 is vulnerable to SQL Injection CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-12787 · CVE Program
- CVE-2025-12787 · NVD
- FIRST EPSS
- GHSA-xj4g-rjq9-vrx7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences