WordPressプラグイン「SEO Booster」に認可の欠如の脆弱性（CVE-2026-15660）
概要
WordPressプラグイン「SEO Booster」に認可の欠如の脆弱性が確認されました。
バージョン 7.4.7 以前に影響があります。
修正版 7.4.8 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-15660 WF-3fd58af7-e8ef-4518-bed8-4e20c8e61db7 |
|---|---|
| 脆弱性の種類 | 認可の欠如 |
| 危険度 | 中 |
| CVSSスコア |
4.3（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| 公開日 | 2026年9月18日 |
| 更新日 | 2026年9月19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「SEO Booster」 |
7.4.7 以前 | 7.4.8 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「SEO Booster」を修正版 7.4.8 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
SEO Booster <= 7.4.7 - Authenticated (Subscriber+) Missing Authorization to Arbitrary Options Modification via handle_oauth_callback()
The SEO Booster plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 7.4.7. This is due to a missing capability check on the handle_oauth_callback() function which is hooked to admin_init and processes $_GET['access_token'] and $_GET['google_email'] without verifying the caller's role. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the seobooster_access_token, seobooster_google_email, and seobooster_gsc_sites options and delete the seobooster_needs_reauth flag by visiting a crafted /wp-admin/ URL, disrupting the Google Search Console integration and injecting attacker-chosen data into site options via the attacker-supplied token that drives an outbound Google API request whose response is stored.
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