CVE-2026-77689
Medium
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductBooking for Appointments and Events Calendar
PublishedSep 12, 2026
First seenSep 12, 2026
Weakness typeCWE-284Improper access control
How to fix
Update
- Booking for Appointments and Events Calendar9.8.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Booking for Appointments and Events Calendar | 9.0 ≤ v < 9.8.1 | 9.8.1 |
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