SchoolCMS version 2.3.1 allows file upload via the logo upload feature at admin.php?m=admin&c=site&a=save by using the .jpg extension, changing the Content-Type to image/php, and placing PHP code after the JPEG data. This ultimately allows execution of arbitrary PHP code.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9181
Reference (s):
- http://www.iwantacve.cn/index.php/archives/125/