CVE-2026-92115
WP Photo Album Plus に報告された脆弱性
概要
The WP Photo Album Plus plugin for WordPress is vulnerable to authenticated Command Injection in all versions up to, and including, 9.3.02.002 via the `value` parameter of the `update-photo` AJAX action. This is due to insufficient shell escaping within the `wppa_image_magick_a()` function, where the attacker-controlled `value` parameter is concatenated raw — without `escapeshellarg()` — into an ImageMagick command string before being passed to `exec()`; further, `wppa_decode()` actively restores percent-encoded shell metacharacters (e.g., `%26`→`&`, `%23`→`#`) rather than stripping them, allowing crafted payloads to survive sanitization and break out of the ImageMagick argument context. This makes it possible for authenticated attackers holding the plugin-defined `wppa_upload` capability to execute arbitrary operating-system commands as the web-server user, achieving full remote code execution on the underlying server. Exploitation requires ImageMagick to be enabled on the server; the `wppa_upload` capability is a plugin-level privilege that site administrators may grant to lower-privileged WordPress roles via the plugin's Users settings, broadening the pool of potential attackers beyond administrators.
影響を受けるバージョン
- 0以上 〜 9.3.02.002以下
対処方法
WP Photo Album Plus を 9.3.02.003 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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30秒で無料診断する参照
- https://downloads.wordpress.org/plugin/wp-photo-album-plus.9.3.02.003.zip
- https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.3.01.003/wppa-ajax.php#L2211
- https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.3.01.003/wppa-ajax.php#L2223
- https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.3.01.003/wppa-ajax.php#L2557
- https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.3.01.003/wppa-photo-files.php#L859
- https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.3.01.003/wppa-photo-files.php#L874
- https://www.wordfence.com/threat-intel/vulnerabilities/id/fc663d68-ca52-4012-847f-09817c121890?source=cve