WordPressプラグイン「YOP Poll」に脆弱性（CVE-2026-85682）
概要
WordPressプラグイン「YOP Poll」に脆弱性が確認されました。
バージョン 7.0.10 以前に影響があります。
修正版 7.0.11 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-85682 WF-b3574182-1bda-49b2-aac7-60f862891b46 |
|---|---|
| 脆弱性の種類 | CWE-346 |
| 危険度 | 高 |
| CVSSスコア |
8.8（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 公開日 | 2026年9月23日 |
| 更新日 | 2026年9月24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「YOP Poll」 |
7.0.10 以前 | 7.0.11 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「YOP Poll」を修正版 7.0.11 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
YOP Poll <= 7.0.10 - Unauthenticated Origin Validation Error to Administrator Account Takeover via '/auth/wp-login-redirect' REST Route
The YOP Poll plugin for WordPress is vulnerable to Origin Validation Error in all versions up to, and including, 7.0.10. This is due to the plugin transmitting a wp_rest nonce to window.opener via postMessage() with a wildcard targetOrigin. This makes it possible for unauthenticated attackers to steal a REST nonce scoped to a logged-in Administrator and use it to change the Administrator's email address and password, resulting in full account takeover. The Administrator must open an attacker-controlled page in order to exploit this vulnerability.
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