Vulnerability in Fluentboards

CVE-2026-89328

The FluentBoards WordPress plugin before 2.0.15 does not properly verify that a user holds board-manager privileges before performing several board-management operations, checking only board membership. This allows any member of a board to carry out manager-only actions on it, including adding or removing members and enabling public access to a private board.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.8 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (17.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.1% 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-2026-89328: 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-2026-89328?
CVE-2026-89328 is a low-severity vulnerability in Fluentboards, classified under Improper Access Control. CVSS score: 3.8/10. Published 2026-09-16.
How severe is CVE-2026-89328?
Low severity. CVSS v3 base score is 3.8 out of 10.