Vulnerability-Lookup

GHSA-63Q7-H895-M982

Vulnerability from github – Published: 2020-12-18 22:51 – Updated: 2022-04-28 17:58

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.

Severity

6.1 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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{
  "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"
}

CVE-2020-26870 (GCVE-0-2020-26870)

Vulnerability from cvelistv5 – Published: 2020-10-07 15:50 – Updated: 2024-08-04 16:03

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

6 references

URL	Tags
https://research.securitum.com/mutation-xss-via-m…	x_refsource_MISC
https://github.com/cure53/DOMPurify/commit/02724b…	x_refsource_MISC
https://github.com/cure53/DOMPurify/compare/2.0.1…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://portal.msrc.microsoft.com/en-US/security-…	vendor-advisoryx_refsource_MS
https://www.oracle.com//security-alerts/cpujul2021.html	x_refsource_MISC

Show details on NVD website

JSON

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            "url": "https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/"
          },
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            "url": "https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d"
          },
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            "url": "https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17"
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          {
            "name": "[debian-lts-announce] 20201029 [SECURITY] [DLA 2419-1] dompurify.js security update",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-63Q7-H895-M982

CVE-2020-26870 (GCVE-0-2020-26870)

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Sightings

Nomenclature

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