A cross site scripting (XSS) vulnerability in S-CMS PHP v3.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the Copyright text box under Basic Settings.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20699
Reference (s):
- https://github.com/Peithon/xss/blob/master/readme.md