{"id":"CVE-2026-65901","sourceIdentifier":"disclosure@vulncheck.com","published":"2026-07-23T14:18:05.000","lastModified":"2026-10-24T13:10:00.147","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"DOMPurify through 3.4.6 contains a cross-site scripting vulnerability in IN_PLACE mode that trusts attacker-controlled nodeName on live non-form nodes. Attackers can supply hostile live DOM objects with real script children whose observable nodeName is clobbered to appear as allowed elements, causing scripts to execute when the sanitized tree is inserted into a live document."},{"lang":"es","value":"DOMPurify hasta la versión 3.4.6 contiene una vulnerabilidad de cross-site scripting en modo IN_PLACE que confía en el nodeName controlado por el atacante en nodos activos que no son de formulario. Los atacantes pueden suministrar objetos DOM activos hostiles con hijos de script reales cuyo nodeName observable es sobrescrito para aparecer como elementos permitidos, lo que provoca la ejecución de scripts cuando el árbol saneado se inserta en un documento activo."}],"affected":[{"source":"disclosure@vulncheck.com","affectedData":[{"vendor":"cure53","product":"DOMPurify","defaultStatus":"unaffected","packageURL":"pkg:npm/dompurify","versions":[{"version":"0","lessThanOrEqual":"3.4.6","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"4.0","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":5.1,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"ACTIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"disclosure@vulncheck.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":2.7}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-23T13:39:27.449020Z","id":"CVE-2026-65901","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"disclosure@vulncheck.com","type":"Primary","description":[{"lang":"en","value":"CWE-79"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:cure53:dompurify:*:*:*:*:*:*:*:*","versionEndExcluding":"3.4.7","matchCriteriaId":"B8B46CA2-8534-449B-8178-06632ED40826"}]}]}],"references":[{"url":"https://github.com/cure53/DOMPurify/security/advisories/GHSA-x4vx-rjvf-j5p4","source":"disclosure@vulncheck.com","tags":["Exploit","Third Party Advisory"]},{"url":"https://www.vulncheck.com/advisories/dompurify-cross-site-scripting-via-in-place-nodename","source":"disclosure@vulncheck.com","tags":["Third Party Advisory"]},{"url":"https://github.com/cure53/DOMPurify/security/advisories/GHSA-x4vx-rjvf-j5p4","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Third Party Advisory"]}]}