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CVE-2025-3197

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Date: April 4, 2025

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.

Severity Score

Related Resources (6)

https://gist.github.com/miguelafmonteiro/d8f66af61d14e06338b688f90c4dfa7c
https://github.com/jonschlinkert/expand-object
https://nvd.nist.gov/vuln/detail/CVE-2025-3197
https://github.com/jonschlinkert/expand-object/blob/master/index.js#L13
https://github.com/jonschlinkert/expand-object/blob/master/index.js%23L13
https://www.mend.io/vulnerability-database/CVE-2025-3197

Severity Score

Weakness Type (CWE)

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CWE-1321

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

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