Information Disclosure in FluentBoards WordPress Plugin by Fluent
CVE-2026-89331

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Fluentboards
Vendor
CVE Published:
23 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-89331?

The FluentBoards WordPress plugin prior to version 2.1.0 has a security flaw that allows unauthenticated users to access member information from public, token-shared boards. This vulnerability enables the exposure of email addresses associated with the board's members, including potentially sensitive user data such as administrator emails, posing a risk to user privacy and security.

Affected Version(s)

FluentBoards 1.95 < 2.1.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-89331 - Proof of Concept

References

https://wpscan.com/vulnerability/d1aaacdf-7427-411f-b376-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

vuxvinh
WPScan
.