WordPressプラグイン「Captcha Code」に脆弱性（CVE-2026-94457）
概要
WordPressプラグイン「Captcha Code」に脆弱性が確認されました。
バージョン 3.32 以前に影響があります。
修正版 3.33 への更新が推奨されます。
脆弱性の基本情報
| 脆弱性ID |
CVE-2026-94457 WF-435259dc-f141-4f1f-9e5b-3e82fb9890c6 |
|---|---|
| 脆弱性の種類 | CWE-804 |
| 危険度 | 中 |
| CVSSスコア |
5.3（CVSS v3.1） CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| 公開日 | 2026年9月23日 |
| 更新日 | 2026年9月30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「Captcha Code」 |
3.32 以前 | 3.33 | Wordfence Intelligence |
推奨対応
- WordPressプラグイン「Captcha Code」を修正版 3.33 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
Captcha Code <= 3.32 - Unauthenticated Login Captcha Protection Bypass
The Captcha Code plugin for WordPress is vulnerable to Bypass Vulnerability in all versions up to, and including, 3.32. This is due to use of the login_redirect filter to enforce captcha validation after authentication succeeds rather than the authenticate filter, allowing authentication to complete before the captcha check could block access. This makes it possible for unauthenticated attackers to bypass the login form captcha and authenticate without solving the challenge, enabling brute-force or unauthorized access to user accounts.
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