WordPressプラグイン「Broken Link Checker」に不適切な入力確認の脆弱性（CVE-2026-102389）
概要
WordPressプラグイン「Broken Link Checker」に不適切な入力確認の脆弱性が確認されました。
バージョン 2.4.14.1 以前に影響があります。
修正版 2.4.15 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-102389 WF-e7fe9fdf-02b1-4dfb-8d5e-bb64fe4c86be |
|---|---|
| 脆弱性の種類 | 不適切な入力確認 |
| 危険度 | 中 |
| CVSSスコア |
5.3（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| 公開日 | 2026年10月13日 |
| 更新日 | 2026年10月23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「Broken Link Checker」 |
2.4.14.1 以前 | 2.4.15 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Broken Link Checker」を修正版 2.4.15 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
Broken Link Checker <= 2.4.14.1 - Unauthenticated Arbitrary HTML Attribute Injection
The Broken Link Checker plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 2.4.14.1. This is due to insufficient output escaping when rebuilding anchor tags in the broken-link highlighting filter, allowing a URL containing a quote character to close the href attribute and inject additional markup. This makes it possible for unauthenticated attackers to inject arbitrary HTML attributes or event handlers into pages that display broken-link-highlighted content, which will execute whenever a user views an affected page.
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