Payment Bypass Vulnerability in Hydra Booking Plugin for WordPress
CVE-2025-12788

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Hydra Booking — Appointment Scheduling & Booking Calendar
Vendor
CVE Published:
11 November 2025

What is CVE-2025-12788?

The Hydra Booking plugin for WordPress allows unauthorized users to confirm payments without proper verification. The plugin fails to verify payment confirmations with PayPal's API, which could enable attackers to falsely mark bookings as paid. This vulnerability exists in all versions up to and including 1.1.27, highlighting the importance of implementing server-side verification to protect against fraudulent transactions.

Affected Version(s)

Hydra Booking — Appointment Scheduling & Booking Calendar * <= 1.1.27

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset/3392864/hydr...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ahmad Salem
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