Frontend File Manager metadata changes can expose other users' files

Frontend File Manager Plugin through 23.6 omits nonce validation from a file-metadata update operation. An attacker can use CSRF to change metadata on a logged-in user's uploaded file and leverage that change to download the file; when guest uploads are enabled, the same operation is directly reachable without authentication against any user's file.

CVE / CNA score 5.4 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0

NVD score Pending NVD has not published its own CVSS assessment.

Component: Frontend File Manager Plugin
Plugin slug: frontend-file-manager-plugin
Affected: <= 23.6
Safe version: > 23.6
Published: Aug 02, 2026
Weakness: CWE-352 — Cross-Site Request Forgery (CSRF)

This CVE was published Aug 02, 2026 and is one of 19 known issues for this plugin.

What to do

Update, patch or deactivate.

Update to a corrected release after 23.6. Until one is available, disable guest uploads or deactivate the plugin when that workflow is not essential. Review file-metadata changes and downloads, restore altered metadata, and handle exposed files according to their sensitivity.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Frontend File Manager Plugin WordPress plugin through 23.6 does not perform nonce validation on one of its file-metadata update actions, allowing an attacker to modify the metadata of a logged-in user's uploaded file via a CSRF attack, which can be leveraged to download that file. When guest uploads are enabled, the same action is reachable unauthenticated against any user's file.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

References

Primary and upstream sources

Data attribution: This product uses the NVD API but is not endorsed or certified by the NVD.

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