Hugo v0.60.0 before v0.167.0 Stored XSS via Table of Contents Heading IDs
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.
CVE-2026-109597
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-109597
hugo
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "gohugoio",
"product": "hugo",
"versions": [
{
"status": "affected",
"version": "0.60.0",
"lessThan": "0.167.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "0.167.0",
"versionType": "semver"
}
],
"packageURL": "pkg:golang/github.com/gohugoio/hugo",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-109597
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #20416 · Revision 1
- Added to Heist Feed
- Publisher date