# DoubleScale CRM | All-in-One CRM – Sales, Multi-Channel Marketing, Newsletter, Booking, Helpdesk, Automation, MCP & More：コード実行

- ID: CVE-2026-111311
- 製品: DoubleScale CRM | All-in-One CRM – Sales, Multi-Channel Marketing, Newsletter, Booking, Helpdesk, Automation, MCP & More
- 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: 2026-10-16T00:17:04.250Z
- 情報源の更新日時: 2026-10-16T05:51:17.720Z
- このサイトの取得日時: 2026-10-22T13:59:06.830Z

## 概要
DoubleScale CRM | All-in-One CRM – Sales, Multi-Channel Marketing, Newsletter, Booking, Helpdesk, Automation, MCP & Moreにコード実行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？
攻撃者にサーバー上でコードやコマンドを実行される可能性があります。

## 対象バージョン
- DoubleScale CRM | All-in-One CRM – Sales, Multi-Channel Marketing, Newsletter, Booking, Helpdesk, Automation, MCP & More: \<= 1.5.1

## 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 DoubleScale | All-in-One CRM – Sales, Multi-Channel Marketing, Newsletter, Booking, Helpdesk, Automation, MCP & More plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.5.1 via the store\_upload function. This is due to a fail-open extension allow-list in extension\_is\_allowed() that returns true when wp\_check\_filetype() yields an empty type for unrecognized extensions such as .php, combined with magic-byte-only MIME detection and no capability check beyond is\_user\_logged\_in(). This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible. Exploitation requires the Helpdesk module to be enabled, as the vulnerable REST endpoint is only registered when that module is active.

## 情報源
- [NVDの原文](https://nvd.nist.gov/vuln/detail/CVE-2026-111311)
- [security@wordfence.com](https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Core/Services/AttachmentService.php#L112)
- [security@wordfence.com](https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Core/Services/AttachmentService.php#L446)
- [security@wordfence.com](https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Modules/Support/Rest/Controllers/RestPortalController.php#L574)
- [security@wordfence.com](https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Modules/Support/Rest/Controllers/RestPortalController.php#L622)
- [security@wordfence.com](https://www.wordfence.com/threat-intel/vulnerabilities/id/0feed03e-fedf-4443-94e0-fbb2c8baba71?source=cve)

- このページ: https://zeijaku.ittrip.xyz/vulnerabilities/CVE-2026-111311

## 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.
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.
Disclaimers: ALL DOCUMENTS AND THE INFORMATION CONTAINED THEREIN PROVIDED BY MITRE ARE PROVIDED ON AN "AS IS" BASIS AND THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE MITRE CORPORATION, ITS BOARD OF TRUSTEES, OFFICERS, AGENTS, AND EMPLOYEES, DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION THEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.