جزئیات آسیب‌پذیری

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.

• https://www.wordfence.com/threat-intel/vulnerabilities/id/fc663d68-ca52-4012-847f-09817c121890?source=cve
• https://plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.3.01.003/wppa-photo-files.php#L874
• 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-ajax.php#L2557
• 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://downloads.wordpress.org/plugin/wp-photo-album-plus.9.3.02.003.zip