Auth bypass in Bookit — Booking & Appointment Calendar

CVE-2026-89007

The Bookit — Booking & Appointment Calendar WordPress plugin before 2.6.0.5 does not perform a capability check in one of its appointment-deletion functions, allowing users with its low-privileged custom Staff role to delete arbitrary appointments.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (20.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-89007: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Bookit — Booking & Appointment Calendar

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-89007?
CVE-2026-89007 is a low-severity vulnerability in Bookit — Booking & Appointment Calendar, classified under Missing Authorization. CVSS score: 2.7/10. Published 2026-09-18.
How severe is CVE-2026-89007?
Low severity. CVSS v3 base score is 2.7 out of 10.