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CVE-2026-6723

Appointment Booking Calendar <= 1.6.11.11 - Incorrect Authorization to Unauthenticated Sensitive Field Modification via Appointment Public Token PUBLISHED

Description (CNA)

The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Incorrect Authorization in all versions up to, and including, 1.6.11.11. This is due to the appointment update REST API endpoint not restricting which fields can be modified by token-authenticated customers. This makes it possible for unauthenticated attackers to modify admin-controlled fields on that appointment, including faking payment confirmation, reassigning the appointment to another user, and changing the service type.

Affected (CNA)

Vendor / productVersions
croixhaug / Simply Schedule Appointmentsaffected 0 through 1.6.11.11

CWE

CWE-863

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.