CVE-2026-89327: low-severity vulnerability in FluentBoards
FluentBoards < 2.0.15 - Board Member+ Comment Author Spoofing via 'comment_by' Parameter
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 3.8epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Affected products
Unknown · FluentBoardspublic PoCs found — 1
cve_referencewpscan.com/vulnerability/aaeff6e8-eca5-4d93-8214-670f1728fb0e/unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — FluentBoards
In the same product, most dangerous first.
CVE-2026-89331MEDIUMFluentBoards 1.95 - 2.0.15 - Unauthenticated Board Member Email Address Disclosure via Public Board EndpointsEPSS 0.3%CVE-2026-85349MEDIUMFluentBoards < 2.0.15 - Subscriber+ Private Board Membership Disclosure via IDOREPSS 0.3%CVE-2026-14938MEDIUMFluentBoards < 1.95.3 - Subscriber+ Cross-Board Task Disclosure via IDOREPSS 0.3%CVE-2026-89328LOWFluentBoards < 2.0.15 - Board Member+ Board Membership and Public Access ModificationEPSS 0.3%