CVE-2026-18325
Forminator Forms – Contact Form, Payment Form & Custom Form Builder に報告された脆弱性
概要
The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Forged Upload Record via Select Field in all versions up to, and including, 1.56.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The exploit is possible because Forminator_Core::sanitize_array() skips all filtering for keys prefixed with 'select-', and set_field_data() treats a submitted 'return' member as a trusted internal flag — allowing an unauthenticated attacker to forge and persist a complete upload field record with an arbitrary file_url value without any sanitization or validation.
影響を受けるバージョン
- 0以上 〜 1.56.1以下
対処方法
Forminator Forms – Contact Form, Payment Form & Custom Form Builder を 1.56.2 以降に更新してください。これで本脆弱性は解消します。
Forminator Forms – Contact Form, Payment Form & Custom Form Builder の他の脆弱性を見る →
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URLを入力するだけで、実際に使われているプラグインを検出し、 このデータベースと突き合わせて既知の脆弱性が残っていないかを確認できます。登録不要・無料です。
30秒で無料診断する参照
- https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/library/abstracts/abstract-class-front-action.php#L127
- https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/library/class-core.php#L616
- https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/library/model/class-form-entry-model.php#L1569
- https://plugins.trac.wordpress.org/browser/forminator/tags/1.55.1/library/modules/custom-forms/front/front-action.php#L1091
- https://plugins.trac.wordpress.org/browser/forminator/tags/1.56.0/library/abstracts/abstract-class-front-action.php#L127
- https://plugins.trac.wordpress.org/browser/forminator/tags/1.56.0/library/class-core.php#L616
- https://plugins.trac.wordpress.org/browser/forminator/tags/1.56.0/library/model/class-form-entry-model.php#L1569
- https://plugins.trac.wordpress.org/browser/forminator/tags/1.56.0/library/modules/custom-forms/front/front-action.php#L1091