CVE-2023-0842

xml2js 0.4.23 - Prototype Pollution

State: Published
Severity: 5.3 Medium
Published: Apr 5, 2023
Updated: Dec 3, 2025
Reserved: Feb 15, 2023

Description

xml2js version 0.4.23 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly validate incoming JSON keys, thus allowing the __proto__ property to be edited.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N	CISA-ADP

Weaknesses

CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Affected Products

Product	Versions
xml2jsn/a	0.4.23Affected

References

https://fluidattacks.com/advisories/myers/third-party-advisory
https://github.com/Leonidas-from-XIV/node-xml2js/product
[debian-lts-announce] 20240314 [SECURITY] [DLA 3760-1] node-xml2js security updatemailing-list
https://github.com/Leonidas-from-XIV/node-xml2js/releases/tag/0.6.2patch

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