CVE-2023-50851: Nsqua Simply Schedule Appointments

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in N Squared Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin.This issue affects Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin: from n/a before 1.6.6.1.

Affected products

• Nsqua Simply Schedule Appointments: before 1.6.6.1 (fixed in 1.6.6.1)

Published 2023-12-28. Last modified 2026-06-17.