Low severity3.8NVD Advisory· Published Sep 27, 2026· Updated Sep 28, 2026
CVE-2026-86839
CVE-2026-86839
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <28.3
Patches
Vulnerability mechanics
References
1News mentions
2- Wordfence Intelligence Weekly WordPress Vulnerability Report (September 21, 2026 to September 27, 2026)Wordfence Blog · Oct 1, 2026
- WordPress: 25 Plugin Vulnerabilities Disclosed Together, Including Critical FlawsVypr Intelligence · Sep 27, 2026