WordPressプラグイン「Broken Link Checker」にクロスサイトスクリプティング（XSS）の脆弱性（CVE-2026-75528）
概要
WordPressプラグイン「Broken Link Checker」にクロスサイトスクリプティング（XSS）の脆弱性が確認されました。
バージョン 2.4.13 以前に影響があります。
修正版 2.4.13.1 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-75528 WF-ec96308f-3944-48c5-94be-b1555c0830b7 |
|---|---|
| 脆弱性の種類 | クロスサイトスクリプティング（XSS） |
| 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9月1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「Broken Link Checker」 |
2.4.13 以前 | 2.4.13.1 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Broken Link Checker」を修正版 2.4.13.1 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 <= 2.4.13 - Unauthenticated Stored Cross-Site Scripting via Comment Author URL / Link Log
The Broken Link Checker plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Author URL / Link Log in all versions up to, and including, 2.4.13 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires an administrator to perform the plugin's standard dismiss-and-recheck workflow on a link submitted by the attacker via the WordPress comment author URL field, after which the attacker's HTTP server issues a redirect to a URL containing an HTML/JavaScript payload that is stored verbatim in the link log.
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