WordPressプラグイン「Auto Upload Images」にサーバーサイドリクエストフォージェリ（SSRF）の脆弱性（CVE-2026-12106）
概要
WordPressプラグイン「Auto Upload Images」にサーバーサイドリクエストフォージェリ（SSRF）の脆弱性が確認されました。
バージョン 3.3.2 以前に影響があります。
修正版 3.4.0 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-12106 WF-adda0c06-80c7-4e2b-af18-8b2e6258e39a |
|---|---|
| 脆弱性の種類 | サーバーサイドリクエストフォージェリ（SSRF） |
| 危険度 | 中 |
| CVSSスコア |
6.4（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| 公開日 | 2026年9月17日 |
| 更新日 | 2026年9月18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「Auto Upload Images」 |
3.3.2 以前 | 3.4.0 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Auto Upload Images」を修正版 3.4.0 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
Auto Upload Images <= 3.3.2 - Authenticated (Contributor+) Server-Side Request Forgery via 'src' Attribute of <img> Tags
The Auto Upload Images plugin for WordPress is vulnerable to Limited Server-Side Request Forgery in all versions up to, and including, 3.3.2 via the downloadImage function. This makes it possible for authenticated attackers, with contributor-level access and above, to make web requests to arbitrary locations originating from the web application. The plugin uses wp_remote_get() rather than wp_safe_remote_get(), and the validate() method only rejects URLs whose host matches the site's own hostname, failing to block requests to private, loopback, or link-local addresses (e.g., 127.0.0.1, 10.0.0.0/8, 169.254.169.254). Attackers can trigger this by embedding a crafted <img> tag with a src attribute pointing to internal network hosts in post content and submitting it for processing.
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.