CVE-2026-91847
Medium
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.
SeverityMedium
CVSS4.8
Exploit probability—
ProductOnline Scheduling and Appointment Booking System
PublishedSep 19, 2026
First seenSep 19, 2026
How to fix
Update
- Online Scheduling and Appointment Booking System28.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Online Scheduling and Appointment Booking System | 28.1 ≤ v < 28.2 | 28.2 |
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