Versions of the package expand-object from 0.0.0 are vulnerable to Prototype Pollution in the expand() function in index.js. This function expands the given string into an object and allows a nested property to be set without checking the provided keys for sensitive properties like __proto__.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00102.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-9700 Versions of the package expand-object from 0.0.0 are vulnerable to Prototype Pollution in the expand() function in index.js. This function expands the given string into an object and allows a nested property to be set without checking the provided keys for sensitive properties like __proto__.
Github GHSA Github GHSA GHSA-4vjr-hfpp-2m7w expand-object Vulnerable to Prototype Pollution via the expand() Function
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gist.github.com/miguelafmonteiro/d8f66af61d14e06338b688f90c4dfa7c cve-icon cve-icon
https://github.com/jonschlinkert/expand-object/blob/master/index.js%23L13 cve-icon cve-icon
https://security.snyk.io/vuln/SNYK-JS-EXPANDOBJECT-5821390 cve-icon cve-icon cve-icon
History

Fri, 04 Apr 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 04 Apr 2025 05:15:00 +0000

Type Values Removed Values Added
Description Versions of the package expand-object from 0.0.0 are vulnerable to Prototype Pollution in the expand() function in index.js. This function expands the given string into an object and allows a nested property to be set without checking the provided keys for sensitive properties like __proto__.
Weaknesses CWE-1321
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: snyk

Published:

Updated: 2025-04-04T14:17:14.575Z

Reserved: 2025-04-03T11:09:12.579Z

Link: CVE-2025-3197

cve-icon Vulnrichment

Updated: 2025-04-04T14:17:07.488Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-04-04T05:15:46.103

Modified: 2025-04-07T14:18:15.560

Link: CVE-2025-3197

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.