CVE-2026-89331: FluentBoards (WordPress plugin) · Information Exposure
Affects FluentBoards (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 5.3 Medium : upgrade to 2.1.0 when convenient.
Data as of 7 Nov 2026, 23:24 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 28% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.1.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 23 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.
What to do
Upgrade FluentBoards (WordPress plugin) to 2.1.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| FluentBoards | Affected
| Fixed in
|
AI-suggested
A fixed version 2.1.0 or later of FluentBoards should be applied to remediate this vulnerability. Until patched, avoid using the public, token-shared board feature or restrict access to trusted users only.
Description
The FluentBoards WordPress plugin before 2.1.0 does not properly restrict the member data returned by its public, token-shared board feature, allowing unauthenticated users to disclose the email addresses of a shared board's members, typically including administrators.