CVE-2026-39493

CRITICAL 9.3

WordPress Simply Schedule Appointments plugin <= 1.6.9.27 - SQL Injection vulnerability

CVSS Score

9.3

EPSS Score

0.0%

EPSS Percentile

0th

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

CWE	CWE-89
Vendor	nsquared
Product	simply schedule appointments
Published	Jun 15, 2026
Last Updated	Jun 16, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

Low

Affected Versions

NSquared / Simply Schedule Appointments

n/a ≤ 1.6.9.27

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/simply-schedule-appointments/vulnerability/wordpress-simply-schedule-appointments-plugin-1-6-9-27-sql-injection-vulnerability-2?_s_id=cve

Credits

Doan Dinh Van | Patchstack Bug Bounty Program