CVE-2026-86839
LOW
CVSS 3.8
Published: 2026-09-27
Modified: 2026-09-28
Tenable Plugin
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Threat Intelligence Pending
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Description
The Online Scheduling and Appointment Booking System WordPress plugin before 28.3 does not verify that appointment and payment records requested through its staff-role AJAX actions belong to the requesting staff member, allowing authenticated attackers with a staff-level account to view, modify and delete other staff members' appointments and payments, including the associated customer's personal information.
Quick Facts
| CVE ID | CVE-2026-86839 |
| CVSS Score | 3.8 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N |
| Published | 2026-09-27 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |