CVE-2026-89331 json
FluentBoards 1.95 - 2.0.15 - Unauthenticated Board Member Email Address Disclosure via Public Board Endpoints
published 2026-09-23 46 d ago modified 2026-09-23 46 d ago also EUVD-2026-85053
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Unknown FluentBoards 2.1.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 46 d ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/d1aaacdf-7427-411f-b376-999793524a4b/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products
- Unknown FluentBoards
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- Technology feeds
References
-
wpscan.com
/vulnerability/d1aaacdf-7427-411f-b376-999793524a4b/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-89331
- NVD CVE-2026-89331
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.