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CVE-2021-21366

Misinterpretation of malicious XML input

Published: Mar 12, 2021Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-115
4.3MEDIUM
NVD MITRE
EPSS Score
1.3%
Top 30.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. xmldom versions 0.4.0 and older do not correctly preserve system identifiers, FPIs or namespaces when repeatedly parsing and serializing maliciously crafted documents. This may lead to unexpected syntactic changes during XML processing in some downstream applications. This is fixed in version 0.5.0. As a workaround downstream applications can validate the input and reject the maliciously crafted documents.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-115CWE-436

Affected Products

xmldom
oss-project
xmldomLibrary
OSS Libraries / npm
npm
package-ecosystem
xmldom
OSS Libraries
xmldom project
package-ecosystemaka xmldom
xmldomLibrary
OSS Libraries / npm
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro

Exploitability

Official Patch Available
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References

https://github.com/xmldom/xmldom/security/advisories/GHSA-h6q6-9hqw-rwfv
github.com
https://www.npmjs.com/package/xmldom
npmjs.com
https://github.com/xmldom/xmldom/releases/tag/0.5.0
github.com
and 4 more references View all →

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