4.8
Medium
CVE-2026-91847 The Online Scheduling and Appointment Booking System WordPress plugin before 28.2 does not verify that the requester…
Description
The Online Scheduling and Appointment Booking System WordPress plugin before 28.2 does not verify that the requester owns the AI booking-assistant conversation named in its unauthenticated conversation actions, allowing any unauthenticated visitor to read another visitor's assistant messages and to inject messages into their in-progress conversation.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Online Scheduling and Appointment Booking System 28.1 | 28.1 → < 28.2 | 28.2 |
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-2026-86839
The Online Scheduling and Appointment Booking System WordPress plugin before 28.3 does not verify that appointment…
3.8
Low
CVE-2026-13395
The Online Scheduling and Appointment Booking System WordPress plugin before 27.8 does not sanitize or properly cast…
8.6
High