Auth bypass in Croixhaug Appointment Booking Calendar — Simply Schedule Appointments Plugin
CVE-2026-1704
The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.6.9.29. This is due to the `get_item_permissions_…
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.000 (10.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/c82f3864-13af-4ff6-824a-4c799…
- plugins.trac.wordpress.org/browser/simply-schedule-appointments/trunk/includes/…
- plugins.trac.wordpress.org/browser/simply-schedule-appointments/tags/1.6.9.21/i…
- plugins.trac.wordpress.org/browser/simply-schedule-appointments/trunk/includes/…
- plugins.trac.wordpress.org/browser/simply-schedule-appointments/tags/1.6.9.21/i…
- plugins.trac.wordpress.org/changeset
Frequently asked questions
- What is CVE-2026-1704?
- CVE-2026-1704 is a medium-severity vulnerability in Croixhaug Appointment Booking Calendar — Simply Schedule Appointments Plugin, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-03-13.
- How severe is CVE-2026-1704?
- Medium severity. CVSS v3 base score is 4.3 out of 10.