WordPressプラグイン「Custom Field Template」にユーザー制御の鍵による認可回避（IDOR）の脆弱性（CVE-2026-12995）
概要
WordPressプラグイン「Custom Field Template」にユーザー制御の鍵による認可回避（IDOR）の脆弱性が確認されました。
バージョン 2.7.8 以前に影響があります。
修正版 2.8 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-12995 WF-02f44f5b-c513-4aba-b895-65df681620c6 |
|---|---|
| 脆弱性の種類 | ユーザー制御の鍵による認可回避（IDOR） |
| 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「Custom Field Template」 |
2.7.8 以前 | 2.8 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Custom Field Template」を修正版 2.8 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
Custom Field Template <= 2.7.8 - Authenticated (Contributor+) Insecure Direct Object Reference to Arbitrary Media File Deletion via 'file_field' Parameter
The Custom Field Template plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.7.8 via the edit_meta_value due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with contributor-level access and above, to delete arbitrary media attachments site-wide by supplying any numeric attachment ID in the file-field parameter alongside the corresponding delete flag, causing content loss and broken pages. Exploitation requires that the attacker's post is governed by a Custom Field Template containing at least one file-type field with the mediaRemove option not enabled, which is the default configuration for file fields.
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