{ "id": "CVE-2020-26870", "sourceIdentifier": "cve@mitre.org", "published": "2020-10-07T16:15:18.030", "lastModified": "2022-04-27T18:49:51.923", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "Cure53 DOMPurify before 2.0.17 allows mutation XSS. This occurs because a serialize-parse roundtrip does not necessarily return the original DOM tree, and a namespace can change from HTML to MathML, as demonstrated by nesting of FORM elements." }, { "lang": "es", "value": "Cure53 DOMPurify versiones anteriores a 2.0.17, permite una mutaci\u00f3n de XSS. Esto ocurre porque un viaje de ida y vuelta de an\u00e1lisis serializado no necesariamente devuelve el \u00e1rbol DOM original, y un espacio de nombres puede cambiar de HTML a MathML, como es demostrado al anidar los elementos FORM" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "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", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.8, "impactScore": 2.7 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE", "baseScore": 4.3 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.6, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "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": "2.0.17", "matchCriteriaId": "1912C4C9-2CB9-4FE6-99ED-B0D60F553977" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:visual_studio_2017:15.9:*:*:*:*:*:*:*", "matchCriteriaId": "6290EF90-AB91-4990-8D44-4F64F49AE133" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:visual_studio_2019:16.0:*:*:*:*:*:*:*", "matchCriteriaId": "3886D126-9ADC-4AAF-8169-70F3DE3A7773" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:visual_studio_2019:16.4:*:*:*:*:*:*:*", "matchCriteriaId": "E904F8BF-C415-43BC-89BD-8AD912BEA82A" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:visual_studio_2019:16.7:*:*:*:*:*:*:*", "matchCriteriaId": "E47AD481-C23D-4610-B9BC-844F7B8F7A28" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:visual_studio_2019:16.8:*:*:*:*:*:*:*", "matchCriteriaId": "BBE9B863-01E5-486C-8B9D-6DC0F78222A7" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:*", "versionEndExcluding": "21.1.0.00.01", "matchCriteriaId": "8F02ECEF-AC7D-4C4C-9A95-890D135F7286" } ] } ] } ], "references": [ { "url": "https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d", "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17", "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html", "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ] }, { "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870", "source": "cve@mitre.org", "tags": [ "Patch", "Vendor Advisory" ] }, { "url": "https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/", "source": "cve@mitre.org", "tags": [ "Exploit", "Third Party Advisory" ] }, { "url": "https://www.oracle.com//security-alerts/cpujul2021.html", "source": "cve@mitre.org", "tags": [ "Patch", "Third Party Advisory" ] } ] }