CVE-2026-25005

Frontend File Manager Plugin <= 23.5 - Unauthenticated Insecure Direct Object Reference

2026-01-16 00:00

Strategic Overview

Status: Patched in 23.6
Affected Plugin: Frontend File Manager Plugin
Affected Version: <= 23.5
CVSS: 5.3Medium
Weakness type: CWE-639 · Authorization Bypass Through User-Controlled Key
CVE: CVE-2026-25005

View all Frontend File Manager Plugin vulnerabilities

At a glance

CVE-2026-25005 is a medium-severity Authorization Bypass Through User-Controlled Key vulnerability in the Frontend File Manager Plugin WordPress plugin, affecting versions <= 23.5. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 23.6; sites on affected versions should update now. Disclosed January 2026, reported by Mdr.

Vulnerability Overview

The Frontend File Manager Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 23.5 due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to perform an unauthorized action.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-639: Authorization Bypass Through User-Controlled Key

Reaching this weakness in Frontend File Manager Plugin <= 23.5 takes no account at all. Authorization bypass through a user-controlled key, often called insecure direct object reference, means the application looks up a record by an identifier from the request without checking that the caller owns it.

Changing a number in the request is enough to read or modify other users' records, which on commerce and membership sites means customer data. For Frontend File Manager Plugin the fix is 23.6: builds <= 23.5 are affected, anything from 23.6 onward is not.

Remediation

Update to version 23.6, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: Frontend File Manager Plugin 23.6 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-25005 https://www.wordfence.com/threat-intel/vulnerabilities/id/8a64d68b-8a0d-451b-ae2e-3cc583b4ed5a https://nvd.nist.gov/vuln/detail/CVE-2026-25005

Related records

Same weakness class

Other vulnerabilities in Frontend File Manager Plugin

CVSS Vector

5.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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