In Gogs 0.11.53, an attacker can use a crafted .eml file to trigger MIME type sniffing, which leads to XSS, as demonstrated by Internet Explorer, because an "X-Content-Type-Options: nosniff" header is not sent.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-17031.json"