CVE-2018-14028 – WordPress Core < 6.4.3 - Authenticated(Administrator+) PHP File Upload

https://notcve.org/view.php?id=CVE-2018-14028

In WordPress 4.9.7, plugins uploaded via the admin area are not verified as being ZIP files. This allows for PHP files to be uploaded. Once a PHP file is uploaded, the plugin extraction fails, but the PHP file remains in a predictable wp-content/uploads location, allowing for an attacker to then execute the file. This represents a security risk in limited scenarios where an attacker (who does have the required capabilities for plugin uploads) cannot simply place arbitrary PHP code into a valid plugin ZIP file and upload that plugin, because a machine's wp-content/plugins directory permissions were set up to block all new plugins. En WordPress 4.9.7, los plugins subidos mediante el área de admin no se verifican como archivos ZIP. • http://www.securityfocus.com/bid/105060 https://core.trac.wordpress.org/ticket/44710 https://github.com/rastating/wordpress-exploit-framework/pull/52 https://rastating.github.io/unrestricted-file-upload-via-plugin-uploader-in-wordpress • CWE-434: Unrestricted Upload of File with Dangerous Type •