Download Manager <= 3.3.71 - Authenticated (Subscriber+) Sensitive Information Exposure via Email Template Token Injection in 'first_name' Profile Field Token Injection into Suspension Email
Summary
| CVE | CVE-2026-103964 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-10 05:16:39 UTC |
| Updated | 2026-10-13 13:30:21 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 4.3 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.002430000 probability, percentile 0.143090000 (date 2026-10-12)
Problem Types: CWE-200 | CWE-200 CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 4.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| 3.1 | CNA | DECLARED | 4.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Codename065 | Download Manager | affected 3.3.71 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/download-manager/tags/3.3.71/src/User/UserController.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/download-manager/tags/3.3.71/src/User/UserController.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/changeset/3724472/download-manager/trunk/src/__/Email.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/download-manager/tags/3.3.71/src/__/Email.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/download-manager/tags/3.3.71/src/__/Email.php | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/84791a83-197b-4a73-826d-517bf... | [email protected] | www.wordfence.com | |
| plugins.trac.wordpress.org/browser/download-manager/tags/3.3.71/src/__/Email.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/download-manager | [email protected] | plugins.trac.wordpress.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Sawyer (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-10-01T15:51:55.000Z | Vendor Notified |
| CNA | 2026-10-09T15:29:44.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.