Read the docs
TI-2025-11719 Aliases CVE-2025-12788GHSA-g9g3-xwvp-8w6r

Hydra Booking – All in One Appointment Booking System | Appointment Scheduling, Booking…

Priority LOW 30CWE-602Published · Updated

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 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00349 28th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
ThemeficHydra Booking — Appointment Scheduling & Booking Calendarup to 1.1.27—No fix listedCNA
  • Hydra Booking — Appointment Scheduling & Booking Calendar VendorThemefic Affected up to 1.1.27 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-12788
  2. 2026-10-03 Alias added: GHSA-g9g3-xwvp-8w6r

References

Other 2

  • 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
See all 59 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences