CVE-2018-17031: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

May 14, 2022 (updated July 25, 2023)

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.

References

github.com/advisories/GHSA-px5r-fqj6-r2f8
github.com/gogs/gogs/issues/5397
nvd.nist.gov/vuln/detail/CVE-2018-17031

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