CVE-2026-7252
WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance に報告された脆弱性
概要
The WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the unscheduled_original_file_deletion function in all versions up to, and including, 4.5.2 This makes it possible for authenticated attackers, with author-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). This is possible because 'original-file' is a public (non-protected) meta key — it does not begin with an underscore — allowing Authors to freely create or modify it on their own attachment posts via the standard Edit Media form or the REST API.
影響を受けるバージョン
- 0以上 〜 4.5.2以下
対処方法
WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance を 4.5.3 以降に更新してください。これで本脆弱性は解消します。
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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/wp-optimize/tags/4.5.2/includes/class-updraft-smush-manager.php#L1645
- https://plugins.trac.wordpress.org/browser/wp-optimize/tags/4.5.2/includes/class-updraft-smush-manager.php#L1649
- https://plugins.trac.wordpress.org/browser/wp-optimize/tags/4.5.2/includes/class-updraft-smush-manager.php#L81
- https://plugins.trac.wordpress.org/browser/wp-optimize/trunk/includes/class-updraft-smush-manager.php#L1645
- https://plugins.trac.wordpress.org/browser/wp-optimize/trunk/includes/class-updraft-smush-manager.php#L1649
- https://plugins.trac.wordpress.org/browser/wp-optimize/trunk/includes/class-updraft-smush-manager.php#L81
- https://plugins.trac.wordpress.org/changeset/3518513/wp-optimize/trunk/includes/class-updraft-smush-manager.php
- https://plugins.trac.wordpress.org/changeset?old_path=%2Fwp-optimize/tags/4.5.2&new_path=%2Fwp-optimize/tags/4.5.3