# CVE-2026-77689

## Summary

- **CVE ID:** CVE-2026-77689
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
- **CWE:** N/A
- **Published:** Sep 12, 2026
- **Last Modified:** Sep 12, 2026

## Description

The Booking for Appointments and Events Calendar  WordPress plugin before 9.8.1 does not verify that a payment was actually taken before recording a booking as paid, trusting the payment gateway named in a public, unauthenticated booking request even when the site has never configured that gateway. This lets an unauthenticated attacker obtain confirmed, fully paid appointments and events without any payment being collected.

## Affected Products

- Unknown — Booking for Appointments and Events Calendar (9.0)

## References

- [CNA](https://wpscan.com/vulnerability/ac597716-193d-419f-b55c-802ee979385e/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.22%
- **EPSS Percentile:** 12.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._