WordPressプラグイン「Request a Quote for WooCommerce」に危険なファイルのアップロードの脆弱性（CVE-2026-18143）
概要
WordPressプラグイン「Request a Quote for WooCommerce」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 2.9.2 以前に影響があります。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-18143 WF-3417ec27-6abf-45c7-945f-6ef456ba1187 |
|---|---|
| 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9月25日 |
| 更新日 | 2026年9月26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「Request a Quote for WooCommerce」 |
2.9.2 以前 | — | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Request a Quote for WooCommerce」の提供元が公開している最新情報を確認し、公式の最新版へ更新してください。
情報元の原文
Wordfence Intelligence
Request a Quote for WooCommerce <= 2.9.2 - Unauthenticated Arbitrary File Upload via AJAX Popup Handler
The Request a Quote for WooCommerce plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.9.2 via the `afrfq_submit_quote_via_popup()` function. This is due to missing file extension and MIME type validation in the popup upload handler, which uses the raw attacker-supplied filename directly as the destination for `move_uploaded_file()`. This makes it possible for unauthenticated attackers to upload executable files, such as PHP files, to a web-accessible temporary RFQ upload directory when a public quote rule with the multi-page popup flow is enabled.
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