WordPressプラグイン「Mang Board」に危険なファイルのアップロードの脆弱性（CVE-2026-109219）
概要
WordPressプラグイン「Mang Board」に危険なファイルのアップロードの脆弱性が確認されました。
バージョン 2.4.4 以上 2.4.4 以下に影響があります。
修正版 2.4.5 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-109219 WF-1e4f4860-b4c9-4f41-b1d0-0b2da8c88b99 |
|---|---|
| 脆弱性の種類 | 危険なファイルのアップロード |
| 危険度 | 重大 |
| CVSSスコア |
9.8（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 公開日 | 2026年10月15日 |
| 更新日 | 2026年10月23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「Mang Board」 |
2.4.4 以上 2.4.4 以下 | 2.4.5 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Mang Board」を修正版 2.4.5 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
Mang Board - 2.4.4 - Unauthenticated Arbitrary File Upload via 'image_path' Parameter
The Mang Board plugin for WordPress is vulnerable to Arbitrary File Upload in version 2.4.4 via the mbw_file_upload function. This is due to missing file extension validation on the attacker-supplied image_path parameter, whose basename-derived file name bypasses the extension allowlist applied only to the separate file_name parameter. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible. Exploitation requires the board to be configured to allow guest posts, which is the plugin's default mode; the required nonce is printed on every public board page, making it readable by any unauthenticated visitor without a WordPress login.
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