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WP-RESCUE // Threat intelligence · 脆弱性データベース
脆弱性データベース
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掲載中修正版ありConvertPlus
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CVE-2026-87741
情報整理：WATRIX合同会社。影響の確定や侵害の有無は、実際の版・設定・ログ等を確認して判断します。
公開元の記載です。日本語での確認手順・対処の解説が付いていない項目も含まれます。
The ConvertPlus plugin for WordPress is vulnerable to Deserialization of Untrusted Data in all versions up to, and including, 3.6.3 via the style parameter of the cp_display_preview_modal AJAX action. The vulnerability exists because the action's nonce guard is gated behind an isset() check and fails open when the cp_admin_page_nonce parameter is omitted entirely, no capability check is performed on the callback, and sanitize_text_field() — applied to the $style value before it is concatenated directly into a shortcode string evaluated by do_shortcode() — does not strip shortcode delimiters, allowing an attacker to inject a second, fully attacker-controlled [smile_modal] invocation that causes smile_modal_popup() to pass attacker-supplied base64-decoded bytes to maybe_unserialize() with no allowed_classes restriction. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject a PHP object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.
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なし
当サイトが取得した原本の履歴です。公開元での過去の改訂日時とは異なります。
初回保存のみです。訂正前の版はまだありません。
現在の保存内容2026/10/31 18:02
Wordfenceの改訂履歴は、当サイトでの保存開始以降が対象です。初回取得より前の版は含まれません。
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