# CVE-2026-78275: WP ManageNinja Fluent Boards Pro arbitrary file deletion

Source: https://junglewise.ai/threats/cve-2026-78275-wp-manageninja-fluent-boards-pro-arbitrary-file-deletion  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-27. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-78275 · Severity: medium · CVSS 6.8 · Published 2026-08-27

Fluent Boards Pro is a WordPress plugin used to manage project boards and tasks on websites. A vulnerability in versions up to 2.0.11 allows users with the Editor role to delete arbitrary files from the server, potentially breaking the website and exposing sensitive data. This affects any WordPress site running the vulnerable plugin with Editor-level users.

Technologies: [WP ManageNinja Fluent Boards Pro](https://junglewise.ai/threats/technologies/fluent-boards-pro). Vendors: [WP ManageNinja](https://junglewise.ai/threats/vendors/wp-manageninja).

## Quick answers

**Is CVE-2026-78275 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-78275 being exploited in the wild.

**How severe is CVE-2026-78275?** Medium severity, with a CVSS score of 6.8, published 27 August 2026.

**Which products and versions are affected?** WP ManageNinja Fluent Boards Pro <=2.0.11.

**Is there a fix for CVE-2026-78275?** A patch was published on 2026-08-26: version 2.0.12 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-78275 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-78275?** Check whether you run WP ManageNinja Fluent Boards Pro 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

This vulnerability is classified as arbitrary file deletion with a broken access control root cause (OWASP A1). Users with Editor privilege level can exploit this flaw to delete files on the server without proper authorization checks. The vulnerability is network-accessible and requires only Editor-level authentication, making it exploitable by any user with that role. An attacker with Editor access can permanently delete critical website files, causing denial of service or data loss. The vulnerability is patched in version 2.0.12 and later.

## Affected products

- WP ManageNinja Fluent Boards Pro <=2.0.11

## Timeline

- 2026-08-26: disclosed
- 2026-08-26: patched: version 2.0.12

## References

- [https://patchstack.com/database/wordpress/plugin/fluent-boards-pro/vulnerability/wordpress-fluent-boards-pro-plugin-2-0-11-arbitrary-file-deletion-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/fluent-boards-pro/vulnerability/wordpress-fluent-boards-pro-plugin-2-0-11-arbitrary-file-deletion-vulnerability?_s_id=cve)

## Related threats

- [Fluent Boards Pro cross-site scripting (XSS) in subscriber functionality](https://junglewise.ai/threats/cve-2026-78273-fluent-boards-pro-cross-site-scripting-xss-in-subscriber)
- [Fluent Boards Pro insecure direct object references (IDOR) in subscriber endpoints](https://junglewise.ai/threats/cve-2026-78278-fluent-boards-pro-insecure-direct-object-references-idor-in)