What is CVE-2026-9576?

CVE-2026-9576 is a medium-severity vulnerability in Fluent Booking, classified under CWE-200 INFORMATION EXPOSURE. CVSS score: 4.9/10. Published 2026-06-30.

How severe is CVE-2026-9576?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in Fluent Booking

CVE-2026-9576

The Fluent Booking WordPress plugin before 2.1.2 does not verify ownership of the requested group_id before exporting attendee data via the export endpoint, allowing users with at least the Calendar Manager role to retrieve attendees' PII (name, email, phone, address, payment information) from calendar groups they do not own.

EPSS: 0.002 (14.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Unknown Fluent Booking — versions 0

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-9576?: CVE-2026-9576 is a medium-severity vulnerability in Fluent Booking, classified under CWE-200 INFORMATION EXPOSURE. CVSS score: 4.9/10. Published 2026-06-30.
How severe is CVE-2026-9576?: Medium severity. CVSS v3 base score is 4.9 out of 10.