WordPressプラグイン「Forminator Forms – Contact Form, Payment Form & Custom Form Builder」にコードインジェクションの脆弱性（CVE-2026-101335）
概要
WordPressプラグイン「Forminator Forms – Contact Form, Payment Form & Custom Form Builder」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 1.58.1 以前に影響があります。
修正版 1.58.2 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-101335 WF-27640d44-1474-416a-8efd-e9524f9d3c7f |
|---|---|
| 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 |
6.5（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:N/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「Forminator Forms – Contact Form, Payment Form & Custom Form Builder」 |
1.58.1 以前 | 1.58.2 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Forminator Forms – Contact Form, Payment Form & Custom Form Builder」を修正版 1.58.2 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
Forminator Forms <= 1.58.1 - Unauthenticated Arbitrary Shortcode Execution via 'User-Agent' Header and 'referer_url' Parameter via Quiz Notification Merge Tags
The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Arbitrary Shortcode Execution in versions up to, and including, 1.58.1. This is due to the forminator_replace_quiz_form_data() helper invoking do_shortcode() on the fully expanded notification body once the {quiz_result} merge tag has been substituted, while the earlier-substituted {user_agent} and {refer_url} merge tags carry unauthenticated attacker-controlled bytes (the User-Agent header and the referer_url POST parameter) through sanitize_text_field()/esc_html(), neither of which strip the '[' and ']' shortcode delimiters. This makes it possible for unauthenticated attackers to execute arbitrary WordPress shortcodes registered on the site by submitting a quiz whose notification template contains {quiz_result}; the resulting impact depends on the shortcodes exposed by other installed plugins/themes and can range from arbitrary content injection to information disclosure.
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