WordPressプラグイン「Database Addon for Contact Form 7 – CFDB7」にユーザー制御の鍵による認可回避（IDOR）の脆弱性（CVE-2026-107652）
概要
WordPressプラグイン「Database Addon for Contact Form 7 – CFDB7」にユーザー制御の鍵による認可回避（IDOR）の脆弱性が確認されました。
バージョン 1.4.1 以前に影響があります。
修正版 1.4.2 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-107652 WF-7de3606a-254c-4e5f-9499-b1cc79dce7c8 |
|---|---|
| 脆弱性の種類 | ユーザー制御の鍵による認可回避（IDOR） |
| 危険度 | 中 |
| CVSSスコア |
5.3（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| 公開日 | 2026年10月13日 |
| 更新日 | 2026年10月14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「Database Addon for Contact Form 7 – CFDB7」 |
1.4.1 以前 | 1.4.2 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Database Addon for Contact Form 7 – CFDB7」を修正版 1.4.2 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
Database Addon for Contact Form 7 <= 1.4.1 - Unauthenticated Limited File Deletion via Injected 'attackcfdb7_file' Submission Field
The Database Addon for Contact Form 7 – CFDB7 plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.4.1. This is due to the plugin storing arbitrary (non-form-tag) submission fields in its db7_forms row and the process_bulk_action() delete handler then matching any stored key whose name contains the substring 'cfdb7_file' and passing the stored value directly to unlink() without validating that the file actually belongs to the submission being deleted or constraining the filename with basename()/realpath(). This makes it possible for unauthenticated attackers to inject a crafted multipart field.
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.