irc.cgi in CGI:IRC before 0.5.12 reflects user-supplied input from the R parameter without proper output encoding, aka XSS.
{ "versions": [ { "introduced": "0" }, { "last_affected": "0.5.11" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-8920.json"