WordPressプラグイン「RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator」にクロスサイトスクリプティング（XSS）の脆弱性（CVE-2026-104735）
概要
WordPressプラグイン「RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator」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 5.2.10 以前に影響があります。
修正版 5.2.11 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-104735 WF-a15a6cf2-aa7d-454c-83d2-9d74ce4505be |
|---|---|
| 脆弱性の種類 | クロスサイトスクリプティング（XSS） |
| 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10月9日 |
| 更新日 | 2026年10月10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「RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator」 |
5.2.10 以前 | 5.2.11 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator」を修正版 5.2.11 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
RSS Aggregator by Feedzy <= 5.2.10 - Authenticated (Contributor+) Stored Cross-Site Scripting via Feedzy Loop Block Feed URL / RSS <title>
The RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Feedzy Loop Block Feed URL / RSS <title> in all versions up to, and including, 5.2.10 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is not neutralized at save time because post_content stores only a benign block reference to an external feed URL; the malicious HTML is injected at render time from the attacker-controlled RSS feed title, bypassing any save-time wp_kses filtering.
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