CVE-2026-86841

MediumCVSS 4.7/10Last modified Sep 28, 2026

Description

The Online Scheduling and Appointment Booking System WordPress plugin before 28.3 does not prevent deserialization of untrusted input and does not correctly restrict a privileged maintenance feature to administrators, allowing users granted a custom booking-management capability, which an administrator must explicitly assign, to inject arbitrary PHP objects, overwrite privileged site options, and read stored integration secrets.

Metrics

CVSS 3.1 4.7/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Weakness enumeration

CWE-502

Affected software

Vendor	Product	Versions
Unknown	Online Scheduling and Appointment Booking System	>= 23.2, < 28.3

References

https://wpscan.com/vulnerability/2150717e-7564-4b29-b2e7-362dd3b480c3/

Timeline

Published: Sep 27, 2026
Last modified: Sep 28, 2026
NVD status: Deferred

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