WordPressプラグイン「Brave – Create Popup, Optins, Lead Generation, Survey, Sticky Elements & Interactive Content」にコードインジェクションの脆弱性（CVE-2026-81571）
概要
WordPressプラグイン「Brave – Create Popup, Optins, Lead Generation, Survey, Sticky Elements & Interactive Content」にコードインジェクションの脆弱性が確認されました。
バージョン 0.8.7 以前に影響があります。
修正版 0.8.8 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-81571 WF-a2eed959-398f-4812-90fb-aab424987c18 |
|---|---|
| 脆弱性の種類 | コードインジェクション |
| 危険度 | 中 |
| CVSSスコア |
6.5（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| 公開日 | 2026年8月31日 |
| 更新日 | 2026年9月16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「Brave – Create Popup, Optins, Lead Generation, Survey, Sticky Elements & Interactive Content」 |
0.8.7 以前 | 0.8.8 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Brave – Create Popup, Optins, Lead Generation, Survey, Sticky Elements & Interactive Content」を修正版 0.8.8 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
Brave Popup Builder <= 0.8.7 - Unauthenticated Arbitrary Shortcode Execution
The Brave Popup Builder plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 0.8.7. This is due to passing a user-controlled URL parameter through do_shortcode() before output in a hidden form field without authentication. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes registered on the site by supplying a crafted UTM parameter that pre-fills a hidden form 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.