{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-41239", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-18T03:47:03.135Z", "datePublished": "2026-04-23T14:47:56.129Z", "dateUpdated": "2026-04-23T14:47:56.129Z"}, "containers": {"cna": {"title": "DOMPurify has a SAFE_FOR_TEMPLATES bypass in RETURN_DOM mode", "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "lang": "en", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-1289", "lang": "en", "description": "CWE-1289: Improper Validation of Unsafe Equivalence in Input", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/cure53/DOMPurify/security/advisories/GHSA-crv5-9vww-q3g8", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/cure53/DOMPurify/security/advisories/GHSA-crv5-9vww-q3g8"}, {"name": "https://github.com/cure53/DOMPurify/releases/tag/3.4.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/cure53/DOMPurify/releases/tag/3.4.0"}], "affected": [{"vendor": "cure53", "product": "DOMPurify", "versions": [{"version": ">= 1.0.10, < 3.4.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-04-23T14:47:56.129Z"}, "descriptions": [{"lang": "en", "value": "DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Starting in version 1.0.10 and prior to version 3.4.0, `SAFE_FOR_TEMPLATES` strips `{{...}}` expressions from untrusted HTML. This works in string mode but not with `RETURN_DOM` or `RETURN_DOM_FRAGMENT`, allowing XSS via template-evaluating frameworks like Vue 2. Version 3.4.0 patches the issue."}], "source": {"advisory": "GHSA-crv5-9vww-q3g8", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Starting in version 1.0.10 and prior to version 3.4.0, `SAFE_FOR_TEMPLATES` strips `{{...}}` expressions from untrusted HTML. This works in string mode but not with `RETURN_DOM` or `RETURN_DOM_FRAGMENT`, allowing XSS via template-evaluating frameworks like Vue 2. Version 3.4.0 patches the issue."}], "id": "CVE-2026-41239", "lastModified": "2026-04-23T16:18:41.563", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-04-23T16:16:26.560", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/cure53/DOMPurify/releases/tag/3.4.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/cure53/DOMPurify/security/advisories/GHSA-crv5-9vww-q3g8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-1289"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}