WordPressプラグイン「MasterStudy LMS WordPress Plugin – for Online Courses and Education」にオープンリダイレクトの脆弱性（CVE-2026-81342）
概要
WordPressプラグイン「MasterStudy LMS WordPress Plugin – for Online Courses and Education」にオープンリダイレクトの脆弱性が確認されました。
バージョン 3.7.43 未満に影響があります。
修正版 3.7.43 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-81342 WF-c1b1418e-3ec4-479c-b607-1ea394d630fe |
|---|---|
| 脆弱性の種類 | オープンリダイレクト |
| 危険度 | 高 |
| CVSSスコア |
7.2（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
| 公開日 | 2026年8月27日 |
| 更新日 | 2026年9月2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「MasterStudy LMS WordPress Plugin – for Online Courses and Education」 |
3.7.43 未満 | 3.7.43 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「MasterStudy LMS WordPress Plugin – for Online Courses and Education」を修正版 3.7.43 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
MasterStudy LMS WordPress Plugin – for Online Courses and Education < 3.7.43 - Unauthenticated Open Redirect
The MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin for WordPress is vulnerable to Open Redirect in all versions up to 3.7.43 (exclusive). This is due to insufficient validation on the redirect url supplied. This makes it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them into performing an action.
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