CVE Catalog

CVE-2026-76586

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.21%

11th percentile - higher than 11% of all known CVEs

Summary

The Appointment Booking Calendar Plugin and Scheduling Plugin WordPress plugin before 1.6.3 does not verify the amount actually paid against the server-side price staged for a booking when confirming an online payment. This allows unauthenticated users to have a paid appointment approved for a fraction of its price.

Risk Assessment

Attackers can obtain paid services without paying the full cost, leading to financial losses and integrity breaches of the booking process.

Recommendation

Update the plugin to the latest version if available, or implement additional server-side payment verification, e.g., by comparing the amount with the payment gateway.

Related vulnerabilities

Original NVD description (English source)

The Appointment Booking Calendar Plugin and Scheduling Plugin WordPress plugin before 1.6.3 does not verify the amount actually paid against the server-side price staged for a booking when confirming an online payment, allowing unauthenticated users to have a paid appointment approved for a fraction of its price.

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