Medium severity5.4NVD Advisory· Published Oct 12, 2026

CVE-2026-109597

Description

Hugo from v0.60.0 before v0.167.0 contains a stored cross-site scripting vulnerability that allows Markdown content authors to inject HTML by supplying crafted explicit heading IDs. Attackers can break out of the unescaped href attribute in .TableOfContents or .Fragments.ToHTML output to inject elements with event handlers into rendered pages.

Affected products

Gohugoio/Hugollm-fuzzy
Range: v0.60.0 <= v < v0.167.0

Patches

Vulnerability mechanics

References

github.com/gohugoio/hugo/security/advisories/GHSA-wcpj-vcvm-j4pgnvd
www.vulncheck.com/advisories/hugo-0.60.0-before-0.167.0-stored-xss-via-table-of-contents-heading-idsnvd

News mentions

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exploit	0.000
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ransomware	0.000