CVE-2026-91847

4.8 mediumEPSS 0.2%

Medium (4.8). EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.8 medium

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-31)
CWE: CWE-639
Published: 2026-09-19
Modified: 2026-09-21
Record from: the NVD, synced 2026-10-19

References

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

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