Information disclosure in Fluentboards

CVE-2026-85349

The FluentBoards WordPress plugin before 2.0.15 does not properly verify authorization when returning the list of boards a user belongs to, allowing any authenticated user, including a Subscriber with no board access, to disclose the private board memberships of arbitrary users by referencing their user ID.

Vulnerability class: Information Disclosure

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (22.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-85349: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Fluentboards

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-85349?
CVE-2026-85349 is a medium-severity vulnerability in Fluentboards, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-09-16.
How severe is CVE-2026-85349?
Medium severity. CVSS v3 base score is 4.3 out of 10.