The POST SMTP Mailer Email log, Delivery Failure Notifications and Best Mail SMTP for WordPress plugin for WordPress is vulnerable to unauthorized access of data and modification of data due to a type juggling issue on the connect-app REST endpoint. This makes it possible for unauthenticated attackers to reset the API key used to authenticate to the mailer and view logs, including password reset emails, allowing site takeover.
The Ancillary Function Driver (AFD.sys) present in Microsoft Windows is vulnerable to a double-fetch that causes an integer overflow, which can result in out-of-bounds memory write to non-paged pool memory. This module allows a local unprivileged user to execute arbitrary code with SYSTEM privileges by calling to the WSASendMsg function with crafted parameters.
The vulnerability allows to an unauthenticated attacker to register as an administrator and take full control of the website. The problem occurs with the plugin registration form. In this form it's possible to change certain values for the account to be registered. This includes the "wp_capabilities" value, which determines the user's role on the website. This update adds a print in the module output window.