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Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin <= 1.6.11.11 - Missing Authorization

CVE-2026-59523 · 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 — Simply Schedule Appointments Booking Plugin <= 1.6.11.11 - Missing Authorization
Affected software
simply-schedule-appointments(Plugin)
Affected versions
  • ≤ 1.6.11.11
Authentication
Not specified in feed title — see source advisory
Vulnerability type
Other
CVE
CVE-2026-59523
Published
9 July 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 8f906e8c-0b20-4da7-86b8-3306f36c46a4). Methodology and redistribution notes

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