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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89327
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-16 06:16:35 UTC
Updated2026-09-17 13:16:58 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 3.8 LOW from ADP

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.001680000 probability, percentile 0.064600000 (date 2026-09-16)

Problem Types: CWE-290 | CWE-290 Authentication Bypass by Spoofing | CWE-290 CWE-290 Authentication Bypass by Spoofing

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED3.8LOWCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary3.8LOWCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown FluentBoards affected 2.0.15 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/aaeff6e8-eca5-4d93-8214-670f1728fb0e [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: vuxvinh (en)

CNA: WPScan (en)

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