CVE-2026-16540

Simply Schedule Appointments < 1.6.12.6 - Unauthenticated Appointment Data Disclosure and Mass Deletion via purge Endpoint

Published Aug 2, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
The Simply Schedule Appointments WordPress plugin before 1.6.12.6 does not correctly restrict a bulk appointment operation to the requester's own records, allowing unauthenticated users to retrieve the personal data of all appointments across the site and, on premium editions, to permanently delete them.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Nsqua
Nsqua simply Schedule Appointments
Wordpress
Wordpress wordpress
Vendors & Products Nsqua
Nsqua simply Schedule Appointments
Wordpress
Wordpress wordpress
Type Values Removed Values Added
Weaknesses CWE-200
CWE-862
Type Values Removed Values Added
Weaknesses CWE-863
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-200
CWE-862
Type Values Removed Values Added
Description The Simply Schedule Appointments WordPress plugin before 1.6.12.6 does not correctly restrict a bulk appointment operation to the requester's own records, allowing unauthenticated users to retrieve the personal data of all appointments across the site and, on premium editions, to permanently delete them.
Title Simply Schedule Appointments < 1.6.12.6 - Unauthenticated Appointment Data Disclosure and Mass Deletion via purge Endpoint
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Aug 3, 2026, 5:49 PM
Reserved
Jul 22, 2026, 9:38 AM
Status
Deferred
Published
Aug 2, 2026, 6:16 AM
Modified
Aug 26, 2026, 4:31 PM