CVE Catalog

CVE-2025-12787

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.31%

23th percentile - higher than 23% of all known CVEs

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.

Risk Assessment

An unauthenticated attacker can cancel arbitrary bookings, causing financial losses and customer dissatisfaction. This may also lead to schedule chaos and reputational damage.

Recommendation

Update the Hydra Booking plugin to a version newer than 1.1.27 if available, or apply a workaround such as additional token and nonce verification. Consider temporarily disabling the AJAX endpoint until patched.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS