The issue allows an attacker to craft a malicious request, exploiting the lack of protection against CSRF attacks in the modified version of Tiny File Manager. This can trick a logged-in admin into submitting a form that creates an archive of any files or directories on the target server. The created archive has a predictable location and name, allowing the attacker to download the file if they know the time at which the form was submitted. This makes it possible to leak sensitive files, such as the WordPress configuration containing database credentials and secrets.