CVE-2020-26870

Published Oct 7, 2020 CVSS 3.1 · 6.1 Medium EPSS 4.9% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2419-1 dompurify.js security update
EUVD EUVD EUVD-2020-1486 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.
Github GHSA Github GHSA GHSA-63q7-h895-m982 Cross-site Scripting in dompurify
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 4, 2024, 4:03 PM
Reserved
Oct 7, 2020, 12:00 AM
Status
Modified
Published
Oct 7, 2020, 4:15 PM
Modified
Jun 17, 2026, 3:08 AM