Threat intelligence

Appointment Booking Calendar <= 1.6.10.6 - Unauthenticated Arbitrary Appointment View, Modification and Deletion

CVE-2026-4807 · simply-schedule-appointments

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Simply Schedule Appointments at a vulnerable version. How SiteRespond intelligence works

Vulnerability: Appointment Booking Calendar <= 1.6.10.6 - Unauthenticated Arbitrary Appointment View, Modification and Deletion
Affected software: simply-schedule-appointments(Plugin)
Affected versions: ≤ 1.6.10.6
Authentication: Unauthenticated
Vulnerability type: Other
CVE: CVE-2026-4807
Published: 6 May 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source: Data imported from Wordfence Intelligence (advisory 436ab843-7729-4d57-9c9e-2ede2f101ddb). Methodology and redistribution notes

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