cve-2020-26870
Vulnerability from cvelistv5
Published
2020-10-07 15:50
Modified
2024-08-04 16:03
Severity ?
EPSS score ?
Summary
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.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d | Patch, Third Party Advisory | |
| cve@mitre.org | https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17 | Patch, Third Party Advisory | |
| cve@mitre.org | https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html | Mailing List, Third Party Advisory | |
| cve@mitre.org | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870 | Patch, Vendor Advisory | |
| cve@mitre.org | https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/ | Exploit, Third Party Advisory | |
| cve@mitre.org | https://www.oracle.com//security-alerts/cpujul2021.html | Patch, Third Party Advisory |
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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.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
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- 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.