wget: arbitrary file overwrite

GNU Wget when supplied with a malicious website link can be tricked
into saving an arbitrary remote file supplied by an attacker, with
arbitrary content and filename under the current directory. This can
lead to potential code execution by creating system scripts (such as
.bash_profile and others) within home directory as well as other
unauthorized actions (such as request sniffing by proxy modification,
or arbitrary system file retrieval) by uploading .wgetrc configuration
file.
Because of this vulnerability, an attacker is able to overwrite an
arbitrary file in the victim’s current directory.