WordPressプラグイン「wpForo Forum」に認可の欠如の脆弱性（CVE-2026-91092）
概要
WordPressプラグイン「wpForo Forum」に認可の欠如の脆弱性が確認されました。
バージョン 3.1.5 以前に影響があります。
修正版 3.1.6 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-91092 WF-97084759-a8fb-4b26-a6fa-93d005b1110e |
|---|---|
| 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21日 |
| 更新日 | 2026年9月22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「wpForo Forum」 |
3.1.5 以前 | 3.1.6 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「wpForo Forum」を修正版 3.1.6 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
wpForo Forum <= 3.1.5 - Missing Authorization to Authenticated (Subscriber+) Guest Post Takeover via wpforo_post_edit Action / Forged comment_author_email Cookie
The wpForo Forum plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.1.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to take over another guest author's forum post and modify its title, body, author name, and stored owner email address. This requires that guest posting and editing are enabled on the forum, and that the attacker knows the target guest author's email address.
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