{"id":"CVE-2026-47423","sourceIdentifier":"security-advisories@github.com","published":"2026-07-14T20:17:02.143","lastModified":"2026-10-24T21:10:00.130","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. In 3.4.4, DOMPurify allowed selectedcontent by default, allowing browsers to re-clone an XSS payload after sanitization so that unsanitized markup inside <selectedcontent> is returned. This issue is fixed in version 3.4.5."},{"lang":"es","value":"DOMPurify es un saneador de cross-site scripting solo de DOM para HTML, MathML y SVG. En la versión 3.4.4, DOMPurify permitía selectedcontent por defecto, lo que permitía a los navegadores volver a clonar una carga útil de XSS después de la sanitización para que el marcado no saneado dentro de [selectedcontent] fuera devuelto. Este problema está solucionado en la versión 3.4.5."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"cure53","product":"DOMPurify","versions":[{"version":">= 3.4.4, < 3.4.5","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":4.7}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-16T14:46:50.385097Z","id":"CVE-2026-47423","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-79"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:cure53:dompurify:3.4.4:*:*:*:*:*:*:*","matchCriteriaId":"80014D50-0DE5-4BAC-8A6A-D9B48C9896B3"}]}]}],"references":[{"url":"https://github.com/cure53/DOMPurify/commit/011b0c78f2a0f57ee54f5fcccb697a46ca6e63ea","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/cure53/DOMPurify/releases/tag/3.4.5","source":"security-advisories@github.com","tags":["Release Notes"]},{"url":"https://github.com/cure53/DOMPurify/security/advisories/GHSA-87xg-pxx2-7hvx","source":"security-advisories@github.com","tags":["Exploit","Vendor Advisory"]},{"url":"https://github.com/cure53/DOMPurify/security/advisories/GHSA-87xg-pxx2-7hvx","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Vendor Advisory"]}]}