Provide references for CVE-2021-38603.
Where can I find more information about CVE-2021-38603?
References are available at: https://pluxml.org/download/changelog.txt, https://github.com/KielVaughn/CVE-2021-38603, http://packetstormsecurity.com/files/163823/PluXML-5.8.7-Cross-Site-Scripting.html.