Maccms 10 contains a cross-site scripting (XSS) vulnerability in the Editing function under the Member module. This vulnerability is exploited via a crafted payload in the nickname text field.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21434
Reference (s):
- https://github.com/Ksharp12138/maccms_userinfo_xss/blob/master/maccms_xss.md