ghsa-63q7-h895-m982
Vulnerability from github
Published
2020-12-18 22:51
Modified
2022-04-28 17:58
Severity ?
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
Cross-site Scripting in dompurify
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.

Show details on source website

To clipboard 

{
   affected: [
      {
         package: {
            ecosystem: "npm",
            name: "dompurify",
         },
         ranges: [
            {
               events: [
                  {
                     introduced: "0",
                  },
                  {
                     fixed: "2.0.17",
                  },
               ],
               type: "ECOSYSTEM",
            },
         ],
      },
   ],
   aliases: [
      "CVE-2020-26870",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-79",
      ],
      github_reviewed: true,
      github_reviewed_at: "2020-12-18T22:51:27Z",
      nvd_published_at: "2020-10-07T16:15:00Z",
      severity: "MODERATE",
   },
   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: "GHSA-63q7-h895-m982",
   modified: "2022-04-28T17:58:51Z",
   published: "2020-12-18T22:51:40Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2020-26870",
      },
      {
         type: "WEB",
         url: "https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d",
      },
      {
         type: "PACKAGE",
         url: "https://github.com/cure53/DOMPurify",
      },
      {
         type: "WEB",
         url: "https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17",
      },
      {
         type: "WEB",
         url: "https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html",
      },
      {
         type: "WEB",
         url: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870",
      },
      {
         type: "WEB",
         url: "https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass",
      },
      {
         type: "WEB",
         url: "https://snyk.io/vuln/SNYK-JS-DOMPURIFY-1016634",
      },
      {
         type: "WEB",
         url: "https://www.oracle.com//security-alerts/cpujul2021.html",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
         type: "CVSS_V3",
      },
   ],
   summary: "Cross-site Scripting in dompurify",
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



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.