gsd-2020-26870
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
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.
Aliases
Aliases
CVE-2020-26870


To clipboard 

{
   GSD: {
      alias: "CVE-2020-26870",
      description: "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.",
      id: "GSD-2020-26870",
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2020-26870",
         ],
         details: "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.",
         id: "GSD-2020-26870",
         modified: "2023-12-13T01:22:09.004721Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "cve@mitre.org",
            ID: "CVE-2020-26870",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "n/a",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "n/a",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "n/a",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  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.",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "n/a",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/",
                  refsource: "MISC",
                  url: "https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/",
               },
               {
                  name: "https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d",
                  refsource: "MISC",
                  url: "https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d",
               },
               {
                  name: "https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17",
                  refsource: "MISC",
                  url: "https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17",
               },
               {
                  name: "[debian-lts-announce] 20201029 [SECURITY] [DLA 2419-1] dompurify.js security update",
                  refsource: "MLIST",
                  url: "https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html",
               },
               {
                  name: "Visual Studio Remote Code Execution Vulnerability",
                  refsource: "MS",
                  url: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870",
               },
               {
                  name: "https://www.oracle.com//security-alerts/cpujul2021.html",
                  refsource: "MISC",
                  url: "https://www.oracle.com//security-alerts/cpujul2021.html",
               },
            ],
         },
      },
      "gitlab.com": {
         advisories: [
            {
               affected_range: "<2.0.17",
               affected_versions: "All versions before 2.0.17",
               cvss_v2: "AV:N/AC:M/Au:N/C:N/I:P/A:N",
               cvss_v3: "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
               cwe_ids: [
                  "CWE-1035",
                  "CWE-79",
                  "CWE-937",
               ],
               date: "2021-07-20",
               description: "Cure53 DOMPurify 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.",
               fixed_versions: [
                  "2.0.17",
               ],
               identifier: "CVE-2020-26870",
               identifiers: [
                  "CVE-2020-26870",
               ],
               not_impacted: "All versions starting from 2.0.17",
               package_slug: "npm/dompurify",
               pubdate: "2020-10-07",
               solution: "Upgrade to version 2.0.17 or above.",
               title: "Cross-site Scripting",
               urls: [
                  "https://nvd.nist.gov/vuln/detail/CVE-2020-26870",
                  "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870",
               ],
               uuid: "a45912cf-d5d6-4e75-9658-c99bd782738c",
            },
         ],
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:cure53:dompurify:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "2.0.17",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:microsoft:visual_studio_2017:15.9:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:microsoft:visual_studio_2019:16.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:microsoft:visual_studio_2019:16.4:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:microsoft:visual_studio_2019:16.7:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:microsoft:visual_studio_2019:16.8:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "21.1.0.00.01",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "cve@mitre.org",
               ID: "CVE-2020-26870",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     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.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-79",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/",
                     refsource: "MISC",
                     tags: [
                        "Exploit",
                        "Third Party Advisory",
                     ],
                     url: "https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/",
                  },
                  {
                     name: "https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d",
                     refsource: "MISC",
                     tags: [
                        "Patch",
                        "Third Party Advisory",
                     ],
                     url: "https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d",
                  },
                  {
                     name: "https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17",
                     refsource: "MISC",
                     tags: [
                        "Patch",
                        "Third Party Advisory",
                     ],
                     url: "https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17",
                  },
                  {
                     name: "[debian-lts-announce] 20201029 [SECURITY] [DLA 2419-1] dompurify.js security update",
                     refsource: "MLIST",
                     tags: [
                        "Mailing List",
                        "Third Party Advisory",
                     ],
                     url: "https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html",
                  },
                  {
                     name: "Visual Studio Remote Code Execution Vulnerability",
                     refsource: "MS",
                     tags: [
                        "Patch",
                        "Vendor Advisory",
                     ],
                     url: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870",
                  },
                  {
                     name: "N/A",
                     refsource: "N/A",
                     tags: [
                        "Patch",
                        "Third Party Advisory",
                     ],
                     url: "https://www.oracle.com//security-alerts/cpujul2021.html",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "MEDIUM",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "NONE",
                  baseScore: 4.3,
                  confidentialityImpact: "NONE",
                  integrityImpact: "PARTIAL",
                  vectorString: "AV:N/AC:M/Au:N/C:N/I:P/A:N",
                  version: "2.0",
               },
               exploitabilityScore: 8.6,
               impactScore: 2.9,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "MEDIUM",
               userInteractionRequired: true,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "NETWORK",
                  availabilityImpact: "NONE",
                  baseScore: 6.1,
                  baseSeverity: "MEDIUM",
                  confidentialityImpact: "LOW",
                  integrityImpact: "LOW",
                  privilegesRequired: "NONE",
                  scope: "CHANGED",
                  userInteraction: "REQUIRED",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                  version: "3.1",
               },
               exploitabilityScore: 2.8,
               impactScore: 2.7,
            },
         },
         lastModifiedDate: "2022-04-27T18:49Z",
         publishedDate: "2020-10-07T16:15Z",
      },
   },
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.