CVE-2026-91847

MEDIUMCVSS 4.8

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.

Timeline

Published:September 19th, 2026 7:16 AM

Last modified:September 21st, 2026 1:34 PM

CVSS Scoring

CVSS v3: 4.8 (MEDIUM)

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

Weaknesses (CWE)

CWE-639

References & Reports

Advisories, patches, and third-party reports

https://wpscan.com/vulnerability/9eef3086-3a67-4ee2-bd78-e346e7b05d62/

Source: NIST NVD · Data may lag official sources by up to one minute