CVE-2026-89327 FluentBoards < 2.0.15 - Board Member+ Comment Author Spoofing via 'comment_by' Parameter

Low 3.8 Published Updated

Board members can spoof comment authorship to impersonate other users, including administrators, in the FluentBoards WordPress plugin.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-89327?

CVE-2026-89327 is a low-severity vulnerability in Unknown FluentBoards, published on 16 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

The FluentBoards WordPress plugin before 2.0.15 does not verify that a board member submitting a comment is the user the comment is attributed to, allowing any board member to post comments that appear to be authored by another user, including administrators.

Weakness: CWE-290

Which versions are affected by CVE-2026-89327?

How do I fix CVE-2026-89327?

No fix has been published for CVE-2026-89327 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-89327 being exploited?

There is no known exploitation of CVE-2026-89327 in the wild and no public exploit code.

Sources

Also known as GHSA-44j7-p38f-pr4v.

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