# CVE-2026-85349: FluentBoards WordPress plugin authorization bypass in board membership

Source: https://junglewise.ai/threats/cve-2026-85349-fluentboards-wordpress-plugin-authorization-bypass-in-board  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-16. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-85349 · Severity: medium · CVSS 4.3 · Published 2026-09-16

FluentBoards is a WordPress plugin used to organize content and collaboration around boards. The plugin fails to properly check permissions when listing which boards a user is a member of, allowing any logged-in user—even those with minimal access—to discover the private board memberships of other users by simply knowing their account ID.

Technologies: [FluentBoards](https://junglewise.ai/threats/technologies/fluentboards). Vendors: [FluentBoards](https://junglewise.ai/threats/vendors/fluentboards).

## Quick answers

**Is CVE-2026-85349 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-85349 being exploited in the wild.

**How severe is CVE-2026-85349?** Medium severity, with a CVSS score of 4.3, published 16 September 2026.

**Which products and versions are affected?** FluentBoards before 2.0.15.

**Is there a fix for CVE-2026-85349?** A patch was published on 2026-09-15: Fix available in version 2.0.15 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-85349 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-85349?** Check whether you run FluentBoards at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an insecure direct object reference (IDOR) stemming from inadequate authorization checks in the board membership disclosure endpoint. When returning the list of boards a user belongs to, the plugin does not verify whether the requester has permission to access that information for other users. An authenticated attacker with Subscriber role or higher can exploit this by making requests with arbitrary user IDs to enumerate private board memberships. The attack requires only authentication and knowledge of target user IDs; no further interaction is needed. This vulnerability was fixed in version 2.0.15.

## Affected products

- FluentBoards FluentBoards before 2.0.15

## Timeline

- 2026-09-14: disclosed
- 2026-09-15: patched: Fix available in version 2.0.15

## References

- [https://wpscan.com/vulnerability/6526a9ee-6320-472b-a179-dba009f6d76d/](https://wpscan.com/vulnerability/6526a9ee-6320-472b-a179-dba009f6d76d/)

## Related threats

- [FluentBoards privilege escalation](https://junglewise.ai/threats/cve-2026-96821-subscriber-privilege-escalation-in-fluentboards-2-0-12-versions)
- [FluentBoards privilege escalation in board management](https://junglewise.ai/threats/cve-2026-89328-fluentboards-privilege-escalation-in-board-management)
- [FluentBoards comment author spoofing via comment_by parameter](https://junglewise.ai/threats/cve-2026-89327-fluentboards-comment-author-spoofing-via-comment-by-parameter)
- [FluentBoards WordPress plugin insecure direct object reference in board import](https://junglewise.ai/threats/cve-2026-14938-fluentboards-wordpress-plugin-insecure-direct-object-reference-in)