Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder に脆弱性 — CVE-2026-120512
いま何をすべきか
Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder を 1.15.51 以降に更新してください。
影響を受けるバージョン
- 1.15.50 以下のすべて
対象: プラグイン「Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder」(form-maker)
何が起きるのか
The Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wdform_<n>_element<id> (Hidden Input field, name = user-defined, e.g. hidden_probe)' parameter in all versions up to, and including, 1.15.50 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. Exploitation requires an administrator to open the Submissions screen and click the Show-on-Map link associated with the poisoned entry, at which point the attacker-controlled field_id value is echoed unescaped into a single-quoted JavaScript string in the FormMakerEditCountryinPopup popup — a step whose nonce and capability checks are automatically satisfied by the administrator's own session and the freshly minted fm_ajax_nonce embedded in the link.
ここから先の選択肢
1. 自分たちで対応する
更新の手順、バックアップの取り方、壊れたときの戻し方をまとめています。
2. いまの制作会社・保守業者に頼む
Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder を使っているかどうかを含めて確認を依頼してください。 無料診断を実行すると、そのまま渡せる依頼文を作れます。
3. 相談先がない・自分では難しい
連絡が取れる相手がいない、管理画面に入れない、侵入された疑いがある。 そうした場合はご相談ください。
出典
- https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.50/admin/controllers/FormMakerEditCountryinPopup.php#L28
- https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.50/admin/views/FMEditCountryinPopup.php#L71
- https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.50/admin/views/Submissions_fm.php#L626
- https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.50/frontend/models/form_maker.php#L2452
- https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.50/frontend/models/form_maker.php#L2622
- https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.51