Misinterpretation of malicious XML input in xmldom
CVE-2021-32796

6.5MEDIUM

Key Information:

Vendor

Xmldom

Status
Xmldom
Vendor
CVE Published:
27 July 2021

What is CVE-2021-32796?

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.

Affected Version(s)

xmldom < 0.7.0

References

https://mattermost.com/blog/coordinated-disclosure-go-xml...
x_refsource_MISC
https://github.com/xmldom/xmldom/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/xmldom/xmldom/commit/7b4b743917a892d40...
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.