Vulnerabilities > CVE-2021-21366 - Misinterpretation of Input vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
LOW Availability impact
NONE Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://github.com/xmldom/xmldom/releases/tag/0.5.0
- https://www.npmjs.com/package/xmldom
- https://github.com/xmldom/xmldom/commit/d4201b9dfbf760049f457f9f08a3888d48835135
- https://github.com/xmldom/xmldom/security/advisories/GHSA-h6q6-9hqw-rwfv
- https://lists.debian.org/debian-lts-announce/2023/01/msg00000.html