PT-2026-53795 · Go · Github.Com/Gohugoio/Hugo
Published
2026-06-19
·
Updated
2026-06-19
CVSS v4.0
5.1
Medium
| Vector | AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |
Hugo's default code-block renderer wrote the Markdown code-fence language / 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 is not an issue if you fully trust every file under /content and every content adapter you load.
Fix
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Github.Com/Gohugoio/Hugo