SARA / Free Tools / CVE / CVE-2022-39353

CVE-2022-39353 — xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. xmldom parses XML that is not well-formed because it contains multiple top level elements, and adds all root nodes to the `childNodes` collection of the `Document`, witho

CVSS
9.4 CRITICAL
EPSS
0.97% (top 23.50%)
CWE
CWE-20, CWE-1288
Published
2022-11-02T00:00:00.000Z
Last modified
2025-04-22T17:16:38.092Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

01What is this vulnerability?

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. xmldom parses XML that is not well-formed because it contains multiple top level elements, and adds all root nodes to the `childNodes` collection of the `Document`, without reporting any error or throwing. This breaks the assumption that there is only a single root node in the tree, which…

02Affected products

VendorProductVersions
xmldomxmldom<= 0.6.0, < 0.7.7, >= 0.8.0, < 0.8.4, >= 0.9.0-beta.1, < 0.9.0-beta.4

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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