WordPressプラグイン「HT Contact Form – Drag & Drop Form Builder for WordPress」にクロスサイトスクリプティング（XSS）の脆弱性（CVE-2026-93303）
概要
WordPressプラグイン「HT Contact Form – Drag & Drop Form Builder for WordPress」にクロスサイトスクリプティング（XSS）の脆弱性が確認されました。
バージョン 2.10.1 以前に影響があります。
修正版 2.10.2 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-93303 WF-d5c3702c-65d3-4b89-a78f-6df267b02a1e |
|---|---|
| 脆弱性の種類 | クロスサイトスクリプティング（XSS） |
| 危険度 | 高 |
| CVSSスコア |
7.2（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
| 公開日 | 2026年9月24日 |
| 更新日 | 2026年9月25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「HT Contact Form – Drag & Drop Form Builder for WordPress」 |
2.10.1 以前 | 2.10.2 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「HT Contact Form – Drag & Drop Form Builder for WordPress」を修正版 2.10.2 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
HT Contact Form <= 2.10.1 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'form_data' Rich Text Field via Draft Save/Resume
The HT Contact Form – Drag & Drop Form Builder for WordPress plugin for WordPress is vulnerable to Stored DOM-Based Cross-Site Scripting via 'form_data' Rich Text Field via Draft Save/Resume in all versions up to, and including, 2.10.1 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. Exploitation requires tricking a user into clicking an attacker-supplied draft resume URL, which the attacker constructs using the draft_key and access_token returned directly in the save response.
Copyright 2012-2026 Defiant Inc.
Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.
Copyright 1999-2026 The MITRE Corporation
CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.