{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100694","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-26T02:37:41.037Z","datePublished":"2026-09-26T13:23:52.256Z","dateUpdated":"2026-09-26T13:23:52.256Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-26T13:23:52.256Z"},"datePublic":"2026-09-09T00:00:00.000Z","title":"Hugo before 0.166.0 Cross-Site Scripting via text/org","descriptions":[{"lang":"en","value":"Hugo is a static site generator. In versions from v0.56.0 through v0.165.x, content files mapped to the text/org media type are rendered without escaping raw HTML: Org export blocks and @@html:...@@ snippets pass HTML through unescaped, resulting in cross-site scripting (XSS) in the generated site. An attacker who can supply or influence a content file under /content or the output of a content adapter can inject scripts that execute in the browsers of visitors to the affected pages. Only pages whose source file or content-adapter output declares the text/org media type are affected, and sites that fully trust all content sources are not impacted. Version v0.166.0 fixes the issue by introducing a security.allowContent allowlist that denies text/org by default; sites that intentionally author Org Mode content can opt back in with [security] allowContent = ['.*']."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","cweId":"CWE-79","type":"CWE"}]}],"affected":[{"vendor":"gohugoio","product":"hugo","defaultStatus":"unaffected","packageURL":"pkg:golang/github.com/gohugoio/hugo","versions":[{"version":"0.56.0","status":"affected","versionType":"semver","lessThan":"0.166.0"},{"version":"0.166.0","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:gohugo:hugo:*:*:*:*:*:*:*:*","versionStartIncluding":"0.56.0","versionEndExcluding":"0.166.0"}]}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS"},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"format":"CVSS"}],"references":[{"url":"https://github.com/gohugoio/hugo/security/advisories/GHSA-pq74-mj4h-cjq2","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-pq74-mj4h-cjq2)"},{"name":"VulnCheck Advisory: Hugo before 0.166.0 Cross-Site Scripting via text/org","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/hugo-before-0.166.0-cross-site-scripting-via-text-org"}],"credits":[{"lang":"en","value":"philipdissert","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}