CVE-2023-0842 | BDVDB-2026-199235 Detail

xml2js

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.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact low, availability impact none. Attack vector: network.

Weaknesses#

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

References#

Exploit#

No public exploit known

History#

Version 12023-04-05Record published in the CVE List.
Version 22025-12-03Most recent update recorded in the CVE List.

Published

Published: 2023-04-05
Last modified: 2025-12-03

Vendor information

Vendor: Not stated
Product: xml2js

Score

5.3 Medium

EPSS

1.3%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 72.6.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
0.4.23
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

5.3 Medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	Low
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).