# FileBird – WordPress Media Library Folders & File Manager <= 6.5.8 - Authenticated (Author+) CSV Injection via Folder Name

- **ID:** WPSEC-2026-0973
- **Plugin:** FileBird – WordPress Media Library Folders & File Manager (`filebird`), https://wordpress.org/plugins/filebird/
- **Affected versions:** all versions before 6.5.9
- **Fixed in:** 6.5.9 (Update to 6.5.9 or later.)
- **Severity:** Medium 4.4 (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N)
- **Weakness:** CWE-1236
- **Usage among sites WPSec scans:** plugin Medium, affected versions Medium (as of 2026-10-14)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/filebird
- **Fix released:** 2026-10-13
- **Published:** 2026-10-14
- **URL:** https://wpsec.com/vuln/WPSEC-2026-0973/

## Description

The FileBird plugin for WordPress is vulnerable to CSV Injection via folder names in all versions up to, and including, 6.5.8, due to insufficient escaping of folder names in the folder CSV export. Each name was wrapped in double quotes, but double quotes inside the name were not doubled, and formula characters were only stripped from the first character. This makes it possible for authenticated attackers with Author-level access and above to create folders whose names end the CSV field early and insert values that run as formulas when an administrator exports the folder structure and opens the file in a spreadsheet application.

## References

- https://wpsec.com/vuln/WPSEC-2026-0973/
- https://plugins.svn.wordpress.org/filebird/tags/6.5.9/
- https://wordpress.org/plugins/filebird/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0973/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.