Executive brief
FluentBoards is a WordPress plugin for creating and managing project boards with tasks and stages. The plugin fails to verify that tasks being imported belong to a board the user has access to, allowing any logged-in user to discover and copy sensitive information (titles, descriptions, files) from any other project board on the site without authorization. This is a data disclosure vulnerability affecting all boards and their contents.
Technical details
The vulnerability is an Insecure Direct Object Reference (IDOR) in the board import REST endpoint (/wp-json/fluent-boards/v2/projects/{project_id}/import-from-board). The plugin fails to verify that stages selected for import belong to a board the requesting user is authorized to access. Because stage IDs are sequential site-wide integers, an attacker can enumerate and import stages from any board on the site, then read the imported tasks (including titles, descriptions, and file attachments) via the tasks endpoint. The attack requires authentication (any user with member access to at least one board) and uses a predictable stage ID enumeration technique. The vulnerability has been fixed in version 1.95.3.
Affected products
- FluentBoards FluentBoards before 1.95.3
Timeline
- 2026-07-20: disclosed: Publicly disclosed on WPScan and added to vulnerability database
- 2026-07-20: patched: Fix released in version 1.95.3
- 2026-08-02: other: Published to NVD as CVE-2026-14938