Kunena before 5.0.4 does not restrict avatar file extensions to gif, jpeg, jpg, and png. This can lead to XSS and remote code execution.
{ "versions": [ { "introduced": "0" }, { "fixed": "5.0.4" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-11020.json"