What is CVE-2026-39493?

CVE-2026-39493 is a critical-severity vulnerability in Nsquared Simply Schedule Appointments, classified under SQL Injection. CVSS score: 9.3/10. Published 2026-06-15.

How severe is CVE-2026-39493?

Critical severity. CVSS v3 base score is 9.3 out of 10.

SQL Injection in Nsquared Simply Schedule Appointments

CVE-2026-39493

Unauthenticated SQL Injection in Simply Schedule Appointments <= 1.6.9.27 versions.

Vulnerability class: SQL Injection

CVSS v3 metric

CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L.

Affected products

Nsquared Simply Schedule Appointments — versions n/a

Weakness classification (CWE)

CWE-89 — SQL Injection

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-39493?: CVE-2026-39493 is a critical-severity vulnerability in Nsquared Simply Schedule Appointments, classified under SQL Injection. CVSS score: 9.3/10. Published 2026-06-15.
How severe is CVE-2026-39493?: Critical severity. CVSS v3 base score is 9.3 out of 10.