SSL Wireless SMS Notification — CVE-2026-96228

どんな問題か

SSL Wireless SMS Notification for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 3.8.1. The public final_login_ajax_action handler resolves a user and issues an authenticated session by matching the wp_sslcare_otp table on only the attacker-supplied phone and cap_data, without verifying the SMS OTP or any server-side single-use state. Because cap_data was chosen by the attacker in the public otp_login_ajax_action step (which stores the row before sending the SMS), the finalize step trivially matches and the user is looked up solely by the sslcare_login_phone meta. This makes it possible for unauthenticated attackers who know a phone-linked user's number to take over that account.

自分のサイトが該当するかの確認手順

1. WordPressの管理画面にログインし、左メニュー「プラグイン」（またはテーマ）に SSL Wireless SMS Notification があるか確認します。
2. あれば、バージョン番号を見て「対象バージョン」に当てはまるか確認します。
3. 当てはまる場合は「更新」ボタンで修正版へ。使っていないプラグインなら削除します。更新ボタンが出ない・怖くて押せない場合は、保守会社か当社へご相談ください。