---
id: CVE-2026-103964
title: >-
  The Download Manager plugin for WordPress is vulnerable to Sensitive
  Information Exposure in all versions up to, and including, 3.3.71 via the
  'first_name' parameter
summary: >-
  The Download Manager plugin for WordPress is vulnerable to Sensitive
  Information Exposure in all versions up to, and including, 3.3.71 via the
  'first_name' parameter. This makes it possible for authenticated attackers,
  with subscriber-le…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-200
published: '2026-10-10'
updated: '2026-10-10'
sourceUpdated: '2026-10-10T05:16:39.257'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103964'
references:
  - url: 'https://plugins.trac.wordpress.org/browser/download-manager/'
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.71/src/User/UserController.php#L151
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.71/src/User/UserController.php#L180
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.71/src/__/Email.php#L382
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.71/src/__/Email.php#L383
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.71/src/__/Email.php#L533
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset/3724472/download-manager/trunk/src/__/Email.php
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/84791a83-197b-4a73-826d-517bf47bc5c9?source=cve
    label: security@wordfence.com
tags:
  - nvd
ingestedAt: '2026-10-10T05:23:33.490Z'
---

## Overview

The Download Manager plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.3.71 via the 'first_name' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract the administrator's full Cookie header, including wordpress_logged_in_* session cookies, from the suspension email sent during the administrator's authenticated request, enabling full session hijack and account takeover. Exploitation requires an administrator to perform the Suspend action against the attacker's account, which causes the plugin to synchronously compile and send the suspension email inside the administrator's authenticated HTTP request — making the administrator's session cookies available to the template engine at send time.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.