{"id":"CVE-2026-100694","state":"PUBLISHED","title":"Hugo before 0.166.0 Cross-Site Scripting via text/org","description":"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 = ['.*'].","publishedAt":"2026-09-26T13:23:52.256Z","updatedAt":"2026-09-30T15:05:16.280Z","severity":{"score":5.1,"label":"Medium","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["gohugoio hugo"],"affected":[{"vendor":"gohugoio","product":"hugo","packageURL":"pkg:golang/github.com/gohugoio/hugo","defaultStatus":"unaffected","versions":[{"version":"0.56.0","status":"affected","lessThan":"0.166.0","versionType":"semver"},{"version":"0.166.0","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/gohugoio/hugo/security/advisories/GHSA-pq74-mj4h-cjq2","https://www.vulncheck.com/advisories/hugo-before-0.166.0-cross-site-scripting-via-text-org"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/100xxx/CVE-2026-100694.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100694","state":"PUBLISHED","datePublished":"2026-09-26T13:23:52.256Z","dateUpdated":"2026-09-30T15:05:16.280Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-26T02:37:41.037Z"},"containers":{"cna":{"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. 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