Back to overview

CVE-2026-58402

MEDIUM
5.1
CVSS 4.0
Description
Hugo is a static site generator. From 0.60.0 until 0.163.3, Hugo's default code-block renderer wrote the Markdown code-fence language or info-string into the code class="language-…" data-lang="…" wrapper without HTML escaping. A fence info-string containing a quote and a script payload breaks out of the attribute and injects a live script element. This issue is fixed in 0.163.3.

Metadata

CVE ID
CVE-2026-58402
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-30 18:19 UTC
Published
2026-07-06 19:19 UTC
Last updated
2026-07-06 20:54 UTC
Primary CWE
CWE-79
CWE-79: Improper Neutralization of Input During Web Page Gen…
Vendor / Product
gohugoio / hugo
Sources
cve.org  ·  NVD

Severity & Metrics

5.1 MEDIUM CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
gohugoio hugo — >= 0.60.0, < 0.163.3
Weakness (CWE)
CWESourceDescription
CWE-79 cna CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS scores (1)
ScoreSeverityVersionSourceVector
5.1 MEDIUM 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
References (4)
Back to overview