CVE Explorer

CVE-2026-58402

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:868544980a66d438efdbc0f9d6c88297d0cdb81d36d0f454e0ec0965c1852650

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"hugo","vendor":"gohugoio","versions":[{"status":"affected","version":">= 0.60.0, < 0.163.3"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:591b912eba97feb32ef32c3d5f49e141cf1c9881da08226964f09b3b0977ce28 · sha256:64162f3291ec4867… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:591b912eba97feb32ef32c3d5f49e141cf1c9881da08226964f09b3b0977ce28 · sha256:64162f3291ec4867… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:591b912eba97feb32ef32c3d5f49e141cf1c9881da08226964f09b3b0977ce28 · sha256:64162f3291ec4867… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions

{"name":"https://github.com/gohugoio/hugo/commit/ce1a7e0bce3713af40496ded3c2c0ceeed49231d","tags":["x_refsource_MISC"],"url":"https://github.com/gohugoio/hugo/commit/ce1a7e0bce3713af40496ded3c2c0ceeed49231d"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:591b912eba97feb32ef32c3d5f49e141cf1c9881da08226964f09b3b0977ce28 · sha256:64162f3291ec4867… · /containers/cna/references/2

{"name":"https://github.com/gohugoio/hugo/pull/15051","tags":["x_refsource_MISC"],"url":"https://github.com/gohugoio/hugo/pull/15051"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:591b912eba97feb32ef32c3d5f49e141cf1c9881da08226964f09b3b0977ce28 · sha256:64162f3291ec4867… · /containers/cna/references/1

{"name":"https://github.com/gohugoio/hugo/releases/tag/v0.163.3","tags":["x_refsource_MISC"],"url":"https://github.com/gohugoio/hugo/releases/tag/v0.163.3"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:591b912eba97feb32ef32c3d5f49e141cf1c9881da08226964f09b3b0977ce28 · sha256:64162f3291ec4867… · /containers/cna/references/3

{"name":"https://github.com/gohugoio/hugo/security/advisories/GHSA-q76j-gcg9-vxc6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/gohugoio/hugo/security/advisories/GHSA-q76j-gcg9-vxc6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:591b912eba97feb32ef32c3d5f49e141cf1c9881da08226964f09b3b0977ce28 · sha256:64162f3291ec4867… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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