CVE-2026-4057

Download Manager <= 3.3.51 - Missing Authorization to Authenticated (Contributor+) Media File Protection Removal

2026-04-09 12:00
Or Benit

Strategic Overview

Status
Patched in 3.3.52
Affected Plugin
Download Manager
Affected Version
<= 3.3.51
CVSS
4.3Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2026-4057
View all Download Manager vulnerabilities

At a glance

CVE-2026-4057 is a medium-severity Missing Authorization vulnerability in the Download Manager WordPress plugin, affecting versions <= 3.3.51. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 3.3.52; sites on affected versions should update now. Disclosed April 2026, reported by Or Benit.

Vulnerability Overview

The Download Manager plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `makeMediaPublic()` and `makeMediaPrivate()` functions in all versions up to, and including, 3.3.51. This is due to the functions only checking for `edit_posts` capability without verifying post ownership via `current_user_can('edit_post', $id)`, and the destructive operations executing before the admin-level check in `mediaAccessControl()`. This makes it possible for authenticated attackers, with Contributor-level access and above, to strip all protection metadata (password, access restrictions, private flag) from any media file they do not own, making admin-protected files publicly accessible via their direct URL.

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 interaction from a victim user.

CWE-862: Missing Authorization

Download Manager <= 3.3.51 carries this weakness at edit_post, and reaching it takes an account at Contributor level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Download Manager the fix is 3.3.52: builds <= 3.3.51 are affected, anything from 3.3.52 onward is not.

Remediation

Update to version 3.3.52, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Download Manager 3.3.52 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-4057https://www.wordfence.com/threat-intel/vulnerabilities/id/a6b02846-61be-4571-921d-53df5493f856https://nvd.nist.gov/vuln/detail/CVE-2026-4057

Related records

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