WordPressプラグイン「Download Manager」に情報漏えいの脆弱性（CVE-2026-103964）
概要
WordPressプラグイン「Download Manager」に情報漏えいの脆弱性が確認されました。
バージョン 3.3.71 以前に影響があります。
修正版 3.3.72 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-103964 WF-84791a83-197b-4a73-826d-517bf47bc5c9 |
|---|---|
| 脆弱性の種類 | 情報漏えい |
| 危険度 | 中 |
| CVSSスコア |
4.3（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| 公開日 | 2026年10月9日 |
| 更新日 | 2026年10月10日 |
影響を受ける製品
| 製品 | 影響を受けるバージョン | 修正版 | 出典 |
|---|---|---|---|
| WordPressプラグイン「Download Manager」 |
3.3.71 以前 | 3.3.72 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Download Manager」を修正版 3.3.72 またはそれ以降の公式最新版へ更新してください。
情報元の原文
Wordfence Intelligence
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
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.
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