CVE-2026-84764

HIGH 8.8

WordPress Simply Schedule Appointments plugin <= 1.6.12.23 - Cross Site Request Forgery (CSRF) vulnerability

CVSS Score

8.8

EPSS Score

0.1%

EPSS Percentile

4th

Unauthenticated Cross Site Request Forgery (CSRF) in Simply Schedule Appointments <= 1.6.12.23 versions.

CWE	CWE-352
Vendor	nsquared
Product	simply schedule appointments
Published	Sep 2, 2026
Last Updated	Sep 4, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

NSquared / Simply Schedule Appointments

n/a ≤ 1.6.12.23

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/simply-schedule-appointments/vulnerability/wordpress-simply-schedule-appointments-plugin-1-6-12-23-cross-site-request-forgery-csrf-vulnerability?_s_id=cve

Credits

Anthony Green of Greenhat Security | Patchstack Bug Bounty Program