CVE-2026-16145
Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms に報告された脆弱性
概要
The Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'action' parameter in all versions up to, and including, 5.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The stored payload is written by any unauthenticated admin-ajax.php request whose action value matches an entry in the plugin's explicit-actions list, which is auto-populated for common form builders at activation and requires no authentication gate to reach the save path.
影響を受けるバージョン
- 0以上 〜 5.1以下
対処方法
Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms を 5.1.1 以降に更新してください。これで本脆弱性は解消します。
Invisible Anti-Spam & CAPTCHA — reCAPTCHA Alternative for All Forms の他の脆弱性を見る →
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URLを入力するだけで、実際に使われているプラグインを検出し、 このデータベースと突き合わせて既知の脆弱性が残っていないかを確認できます。登録不要・無料です。
30秒で無料診断する参照
- https://plugins.trac.wordpress.org/browser/gdpr-compliant-recaptcha-for-all-forms/tags/5.0/includes/class-message-page.php#L621
- https://plugins.trac.wordpress.org/browser/gdpr-compliant-recaptcha-for-all-forms/tags/5.0/includes/class-stamp.php#L136
- https://plugins.trac.wordpress.org/browser/gdpr-compliant-recaptcha-for-all-forms/tags/5.0/includes/class-stamp.php#L771
- https://plugins.trac.wordpress.org/changeset/3633500/gdpr-compliant-recaptcha-for-all-forms
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ff1d2bd8-cc46-4763-8ba7-832b982ff56a?source=cve