Medium (6.5). EPSS 0.4% chance of exploitation in the next 30 days.
The Booking for Appointments and Events Calendar WordPress plugin before 2.4.9 does not require authentication or a valid request token before running the post-booking action chain, allowing an unauthenticated user to trigger booking notifications and integration callbacks for a booking by enumerating its identifier.
Severity
CVSS 3.1
6.5 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
EPSS
0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-31)