WordPress Simply Schedule Appointments plugin <= 1.6.13.0 - Broken Access Control vulnerability

published 2026-11-11 22h ago modified 2026-11-11 18h ago also EUVD-2026-123387

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: —; no EPSS score yet
public exploits: 0; none known

Missing Authorization vulnerability in NSquared Simply Schedule Appointments simply-schedule-appointments allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Simply Schedule Appointments: from n/a through 1.6.13.0.

Patch / fix

fixed in 1

NSquared Simply Schedule Appointments 1.6.13.4

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CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 19h ago (2026-11-11)

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

NSquared Simply Schedule Appointments

Classification

Weakness

CWE-862 Missing Authorization

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/simply-schedule-appointments/vulnerability/wordpress-simply-schedule-appointments-p
vdb-entry

Sources

CVE List CVE-2026-125437
NVD CVE-2026-125437

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