WordPressプラグイン「Slim SEO – AI SEO Plugin, Lightweight, Fast & Automated」にコードインジェクションの脆弱性（CVE-2026-104001）
概要
WordPressプラグイン「Slim SEO – AI SEO Plugin, Lightweight, Fast & Automated」にコードインジェクションの脆弱性が確認されました。
バージョン 4.11.1 以前に影響があります。
修正版 4.11.2 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-104001 WF-7a7c53b9-e9b6-4337-9c89-326e66c4bd27 |
|---|---|
| 脆弱性の種類 | コードインジェクション |
| 危険度 | 中 |
| CVSSスコア |
5.4（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| 公開日 | 2026年10月15日 |
| 更新日 | 2026年10月16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「Slim SEO – AI SEO Plugin, Lightweight, Fast & Automated」 |
4.11.1 以前 | 4.11.2 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Slim SEO – AI SEO Plugin, Lightweight, Fast & Automated」を修正版 4.11.2 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
Slim SEO <= 4.11.1 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'Biographical Info' User Meta
The The Slim SEO – AI SEO Plugin, Lightweight, Fast & Automated plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 4.11.1 This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes. A Subscriber-level user need only save the shortcode payload to their own Biographical Info field via the REST API or wp-admin profile page; the shortcode then executes on any unauthenticated front-end request that resolves that author's description, such as requests using the ?author= query parameter when auto_redirection is disabled.
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