WordPressプラグイン「User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission」に不適切な権限管理の脆弱性（CVE-2026-75823）
概要
WordPressプラグイン「User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission」に不適切な権限管理の脆弱性が確認されました。
バージョン 3.5.29 以上 4.3.11 以下に影響があります。
修正版 4.3.12 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-75823 WF-4799bb1f-4e5d-4b39-9f99-ffb46de4c232 |
|---|---|
| 脆弱性の種類 | 不適切な権限管理 |
| 危険度 | 高 |
| CVSSスコア |
7.3（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| 公開日 | 2026年9月28日 |
| 更新日 | 2026年10月8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「User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission」 |
3.5.29 以上 4.3.11 以下 | 4.3.12 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission」を修正版 4.3.12 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
User Frontend 3.5.29 - 4.3.11 - Unauthenticated Privilege Escalation
The User Frontend plugin for WordPress is vulnerable to Privilege Escalation in versions 3.5.29 through 4.3.11. This is due to insufficient restriction on the capabilities a user may grant themselves. This makes it possible for unauthenticated attackers to elevate their privileges beyond those intended for their role.
Copyright 2012-2026 Defiant Inc.
Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.
Copyright 1999-2026 The MITRE Corporation
CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.