NSquared vulnerabilities
We track 3 vulnerabilities in NSquared products. 3 are rated high or critical, and none are known to be exploited. The most recent was published on October 18, 2026.
Latest NSquared vulnerabilities
- 7.1 High severity
Simply Schedule Appointments: Improper Neutralization of Input During Web Page Generation
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Stored XSS.This issue affects Simply Schedule Appointments: from n/a through 1.6.12.
- 8.5 High severity
Simply Schedule Appointments: Improper Neutralization of Special Elements used in an SQL Command
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Blind SQL Injection.This issue affects Simply Schedule Appointments: from n/a throug
- 8.8 High severity
Appointment Booking Calendar — Simply Schedule…: Improper Neutralization of Special Elements used in an SQL Command
The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to SQL Injection via the customer_id parameter in all versions up to, and including, 1.6.7.7 due to insufficient escaping on the user supplied par