Provide references for CVE-2021-40509.
Where can I find more information about CVE-2021-40509?
References are available at: http://packetstormsecurity.com/files/164045/jforum-2.7.0-Cross-Site-Scripting.html, https://lists.openwall.net/full-disclosure/2021/09/03/7, https://sourceforge.net/p/jforum2/code/934/, http://seclists.org/fulldisclosure/2021/Sep/13.