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CVE-2026-103964— 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

Quick assessment

Affected
codename065 Download Manager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 的 Download Manager 插件在所有不高于 3.3.71 的版本中存在敏感信息泄露漏洞，该漏洞可通过“first_name”参数触发。此漏洞使得拥有订阅者及以上权限的攻击者能够提取管理员的完整 Cookie 头（包括 wordpress_logged_in_* 会话 Cookie），这些 Cookie 是在管理员进行身份验证请求时，通过插件发送的暂停邮件中提取的。这使得攻击者能够完全劫持会话并接管管理员账户。 要利用此漏洞，管理员必须对攻击者的账户执行“暂停”操作。这一操作会导致插件

CVSS 4.3 · Medium EPSS 0.24% · P14

Affected Version Matrix 1

VendorProduct Version RangeStatus
codename065 Download Manager ≤ 3.3.71 affected
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I. Basic Information for CVE-2026-103964

Vulnerability Information
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Vulnerability Title
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
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
codename065 Download Manager 0 ~ 3.3.71 -

II. Public POCs for CVE-2026-103964

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III. Intelligence Information for CVE-2026-103964

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Patches & Fixes for CVE-2026-103964 (5)

Vendor Advisories for CVE-2026-103964 (1)

Vendor Pages for CVE-2026-103964 (1)

Other References for CVE-2026-103964 (1)

Same Patch Batch · codename065 · 2026-10-10 · 5 CVEs total

CVE-2026-102401 6.4 MEDIUM Download Manager <= 3.3.71 - Authenticated (Contributor+) Stored Cross-Site Scripting via
CVE-2026-9696 6.4 MEDIUM Download Manager <= 3.3.58 - Authenticated (Contributor+) Stored Cross-Site Scripting via
CVE-2026-103478 6.4 MEDIUM Premium Packages <= 7.2.6 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'c
CVE-2026-12054 6.1 MEDIUM Download Manager <= 3.3.57 - Unauthenticated DOM-Based Reflected Cross-Site Scripting via

IV. Related Vulnerabilities

Same product: Download Manager
Same vendor: codename065
Same weakness: CWE-200

V. Comments for CVE-2026-103964

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