EUVD-2026-83509

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 ...

PT-2026-95762

Name of the Vulnerable Software and Affected Versions Online Scheduling and Appointment Booking System WordPress plugin versions prior to 28.2 Description The plugin fails to verify if the requester is the owner of the AI booking-assistant conversation during unauthenticated conversation actions...

CVE-2026-91847: Authorization Bypass Through User-Controlled Key

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 ...

bookingassistant.de Cross Site Scripting vulnerability OBB-2326167

Following the coordinated and responsible vulnerability disclosure guidelines of the ISO 29147 standard, Open Bug Bounty has: a. verified the vulnerability and confirmed its existence; b. notified the website operator about its existence. Technical details of the vulnerability are currently hidde...