Moderate severityNVD Advisory· Published Jul 27, 2021· Updated Aug 3, 2024
Misinterpretation of malicious XML input in xmldom
CVE-2021-32796
Description
xmldom is an open source pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. xmldom versions 0.6.0 and older do not correctly escape special characters when serializing elements removed from their ancestor. This may lead to unexpected syntactic changes during XML processing in some downstream applications. This issue has been resolved in version 0.7.0. As a workaround downstream applications can validate the input and reject the maliciously crafted documents.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
xmldomnpm | <= 0.6.0 | — |
@xmldom/xmldomnpm | < 0.7.0 | 0.7.0 |
Affected products
3- ghsa-coords2 versions
< 0.7.0+ 1 more
- (no CPE)range: < 0.7.0
- (no CPE)range: <= 0.6.0
Patches
Vulnerability mechanics
References
8- github.com/advisories/GHSA-5fg8-2547-mr8qghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-32796ghsaADVISORY
- github.com/xmldom/xmldom/commit/7b4b743917a892d407356e055b296dcd6d107e8bghsax_refsource_MISCWEB
- github.com/xmldom/xmldom/security/advisories/GHSA-5fg8-2547-mr8qghsax_refsource_CONFIRMWEB
- mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilitiesghsaWEB
- mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/mitrex_refsource_MISC
- mattermost.com/blog/securing-xml-implementations-across-the-webghsaWEB
- www.npmjs.com/package/@xmldom/xmldomghsaWEB
News mentions
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