Can anyone explain what is this vulnerability i am getting? Server is mine

​ https://preview.redd.it/ou6bpz8l0hv71.png?width=840&format=png&auto=webp&s=4f16bb3ebae5c7fb20c0e418163d94400f5f6ead submitted by /u/mchnic5 [link] [comments]

from hacking: security in practice https://ift.tt/3jRF527