CVE-2026-91847: Bookly < 28.2 - Unauthenticated AI Assistant Conversation Disclosure and Message Injection via IDOR
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 Software
Event History
Frequently Asked Questions
Who can exploit this issue?
Any unauthenticated visitor can exploit it. The issue affects the plugin's unauthenticated actions for AI booking-assistant conversations.
What does an attacker need to access or alter another visitor's conversation?
The attacker needs to name or reference another visitor's AI booking-assistant conversation in an unauthenticated conversation action. Ownership of that conversation is not verified.
What information and actions are exposed?
An attacker can read another visitor's assistant messages and inject messages into that visitor's in-progress AI booking-assistant conversation.
Which versions are affected?
Bookly versions before 28.2 are affected.