CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
What the vulnerability does
The WordPress User Extra Fields plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the save_fields() function in all versions up to, and including, 16.7. This makes it possible for authenticated attackers, with Subscriber-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).
Explanation of Vulnerability in Simple Terms
WordPress User Extra Fields plugin versions 16.7 and earlier contain a vulnerability allowing authenticated users with low privileges to read, modify, or delete data on the site. The plugin fails to properly restrict access to sensitive operations. An attacker with a standard user account can exploit this without additional user interaction to compromise site data and functionality.
What an attacker can do
Read, modify, or delete site data and user information with a low-privilege account.
Potential impact on your site
User data and site content can be compromised by any authenticated user, even those with minimal permissions.
Conditions required to exploit
Attacker must have a valid WordPress user account with low privileges (e.g., subscriber or contributor role).
Key dates
External resources
