Describe CVE-2021-3340.
What is CVE-2021-3340?
A cross-site scripting (XSS) vulnerability in many forms of Wikindx before 5.7.0 and 6.x through 6.4.0 allows remote attackers to inject arbitrary web script or HTML via the message parameter to index.php?action=initLogon or modules/admin/DELETEIMAGES.php..