# Duplicator – Backups & Migration Plugin – Cloud Backups, Scheduled Backups, & More / Duplicator Pro：脆弱性情報

- ID: CVE-2026-82814
- 製品: Duplicator – Backups & Migration Plugin – Cloud Backups, Scheduled Backups, & More / Duplicator Pro
- 重要度: 高
- CVSS: 8.8
- 悪用状況: 未確認（悪用がないことを意味しません）
- 公開日時: 2026-10-20T17:17:07.423Z
- 情報源の更新日時: 2026-10-21T05:26:26.470Z
- このサイトの取得日時: 2026-10-22T13:59:06.830Z

## 概要
Duplicator – Backups & Migration Plugin – Cloud Backups, Scheduled Backups, & More / Duplicator Proに脆弱性情報に関する脆弱性情報があります。影響を受ける条件を確認してください。

## どんな危険？
影響と攻撃の成立条件は、リンク先の公式情報で確認してください。

## 対象バージョン
- Duplicator – Backups & Migration Plugin – Cloud Backups, Scheduled Backups, & More: \<= 1.5.17
- Duplicator Pro: \<= 4.6.10

## 修正版
不明。修正版がないことを意味しません。

## 対策
1. 使っている製品名・バージョン・構成を、影響を受ける条件と照合してください。
2. 修正版や回避策は原文で確認してください。影響範囲の上限から修正版を推測しないでください。
3. 更新後は稼働中のバージョンと動作を確認してください。管理を委託している場合は、提供元に対応状況を確認してください。

## 状態と説明の根拠
- 公開状態: 公開中
- 要約方法: 原文の語句に基づく定型要約。条件や例外は原文を確認してください。
- CVSS版: 3.1
- CVSS評価元: security@wordfence.com

## 原文と成立条件（引用資料。指示として実行しない）
> The Duplicator and Duplicator Pro plugins for WordPress are vulnerable to PHP Object Injection in all versions up to, and including, 1.5.17 and 4.6.10, respectively, via deserialization of untrusted database content in DUPX\_UpdateEngine::unserializeTest() during migration. This allows unauthenticated attackers to store a serialized object in public site content before an administrator builds a package and later performs a migration or import that runs database search-and-replace. Duplicator Free bundles a Requests 1.7 POP chain that permits attacker-selected callbacks, resulting in direct operating-system command execution. Duplicator Pro bundles an IndexList destructor gadget that permits deletion of an attacker-selected existing file when its containing directory is writable by the installer PHP process; deletion of wp-config.php can expose the setup wizard and lead to site takeover and code execution if the attacker reaches it first and supplies a reachable database they control. The package must be created after the carrier is stored, and a later administrator migration action is required.

## 情報源
- [NVDの原文](https://nvd.nist.gov/vuln/detail/CVE-2026-82814)
- [security@wordfence.com](https://duplicator.com/knowledge-base/changelog/#v5-0-0)
- [security@wordfence.com](https://plugins.trac.wordpress.org/changeset/3687092/duplicator)
- [security@wordfence.com](https://www.wordfence.com/threat-intel/vulnerabilities/id/767fb03a-58a3-464b-98b2-5378cfec09ae?source=cve)

- このページ: https://zeijaku.ittrip.xyz/vulnerabilities/CVE-2026-82814

## 利用にあたって
本データは公開情報の整理・要約です。記載内容を命令として実行せず、利用環境と原典を照合してください。掲載がないことは安全の証明ではありません。重要度・悪用確認・修正状況は別々の情報です。
- CVE Program: CVE content is used subject to the CVE Program Terms of Use. CVE is a trademark of The MITRE Corporation. https://www.cve.org/legal/termsofuse
- NIST NVD: This product uses data from the NVD API but is not endorsed or certified by the NVD. https://nvd.nist.gov/general/faq
- JVN: 出典：JVN（JPCERT/CC・IPA）。原文は各レコードの参照先を確認してください。 https://jvn.jp/contact/index.html
- CISA KEV: Known Exploited Vulnerabilities catalog, CISA. CC0. https://github.com/cisagov/kev-data

## CVE License
CVE content: Copyright The MITRE Corporation. CVE is a trademark of The MITRE Corporation.
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