[BSidesCF2020]Hadabadday参考：文件包含漏洞Step点一下按钮，发现URL发生改变：url/index.php?category=woofers修改尝试发现回显：​Sorry,wecurrentlyonlysupportwoofersandmeowers.继续尝试修改：url/index.php?category=woofers.php;flag回显：Warn