3.8
Low
CVE-2026-86839 The Online Scheduling and Appointment Booking System WordPress plugin before 28.3 does not verify that appointment…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Online Scheduling and Appointment Booking System 28.3 | earliest → < 28.3 | 28.3 |
Other CVEs of Online Scheduling and Appointment Booking System
The 4 CVEs of Online Scheduling and Appointment Booking System →
CVE-2026-86841
The Online Scheduling and Appointment Booking System WordPress plugin before 28.3 does not prevent deserialization of…
4.7
Medium
CVE-2026-91847
The Online Scheduling and Appointment Booking System WordPress plugin before 28.2 does not verify that the requester…
4.8
Medium
CVE-2026-13395
The Online Scheduling and Appointment Booking System WordPress plugin before 27.8 does not sanitize or properly cast…
8.6
High