GitHub Advisoryadvisory · npm
GHSA-63q7-h895-m982 Cross-site Scripting in dompurify
MEDIUM
Official page ↗
- Aliases
- CVE-2020-26870
- Ecosystem
- npm
- Packages
- dompurify
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
- Reviewed
- 2020-12-18
Affected packages
• npm dompurify: < 2.0.17 → fixed in 2.0.17
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.
Related
Alias · CVE (1)
- CVE-2020-26870 Cure53 DOMPurify before 2.0.17 allows mutation XSS. vulnerability
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-26870 advisory
- https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d web
- https://github.com/cure53/DOMPurify package
- https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17 web
- https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html web
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870 web
- https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass web
- https://snyk.io/vuln/SNYK-JS-DOMPURIFY-1016634 web
- https://www.oracle.com//security-alerts/cpujul2021.html web