WordPressプラグイン「MemberPress Corporate Accounts」に不適切な権限管理の脆弱性（CVE-2026-15451）
概要
WordPressプラグイン「MemberPress Corporate Accounts」に不適切な権限管理の脆弱性が確認されました。
バージョン 1.5.39 以前に影響があります。
修正版 1.6.0 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-15451 WF-ba49bbf9-649b-456e-bab8-9f0f74bdbaee |
|---|---|
| 脆弱性の種類 | 不適切な権限管理 |
| 危険度 | 高 |
| CVSSスコア |
8.8（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 公開日 | 2026年9月11日 |
| 更新日 | 2026年9月12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「MemberPress Corporate Accounts」 |
1.5.39 以前 | 1.6.0 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「MemberPress Corporate Accounts」を修正版 1.6.0 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
MemberPress Corporate Accounts <= 1.5.39 - Authenticated (Subscriber+) Privilege Escalation via Mass Assignment in Sub-Account Creation
The MemberPress Corporate Accounts plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 1.5.39. This is due to a mass assignment vulnerability in the 'add_sub_account_user' function that passes the raw 'userdata' array to 'wp_insert_user' without filtering dangerous keys like role or ID. This makes it possible for authenticated attackers, with subscriber-level access and above who hold a corporate account, to create new administrator accounts or hijack existing administrator accounts by overwriting their email addresses. The vulnerability was partially patched in version 1.5.39.
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