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Findings

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 u…

Published Mar 13, 2026 · updated Jun 17, 2026

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 method granting access to users with the capability without validating staff ownership of the requested appointment. This makes it possible for authenticated attackers, with custom-level access and above (users granted the ssa_manage_appointments capability, such as Team Members), to view appointment records belonging to other staff members and access sensitive customer personally identifiable information via the appointment ID parameter.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 13, 2026 · NIST NVD

    Detected

    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 method granting access to users with the capability without validating staff ownership of the requested appointment. This makes it possible for authenticated attackers, with custom-le

  2. Jun 17, 2026 · NIST NVD

    Updated

    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 method granting access to users with the capability without validating staff ownership of the requested appointment. This makes it possible for authenticated attackers, with custom-le

Sources

  • CVE.orgVulnerability recordCVE-2026-1704

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-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 method granting access to users wi

    nvd.nist.gov

References