CVE-2021-21366CWE-115CWE-436

Misinterpretation of malicious XML input

Medium · published March 12, 2021

CVSS v3.1
4.3
EPSS
1%
Percentile
71.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.01340 · 71.1th percentile
Weaknesses
CWE-115 · Misinterpretation of Input; CWE-436 · Interpretation Conflict
Published
2021-03-12T00:00Z
EPSS history
Timeline
  • 12 MAR 00:00Z
    Misinterpretation of malicious XML input
    cvelistv5