Discuz 1.5 配合NGINX二次解析爆路径BUG

作者：晴天小铸

测试环境：discuz X1.5+nginx 1.0

漏洞文件source/function/function_core.php，代码：

$_G['setting']['domain']['app']['default'] && $content = preg_replace("/<a href="([^"]+)"/e", "rewriteoutput('site_default', 0, '".$_G['setting']['domain']['app']['default'].$port.$_G['siteroot']."', '\1')", $content);