CVE-2025-3197

medium

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__.

References

https://security.snyk.io/vuln/SNYK-JS-EXPANDOBJECT-5821390

https://github.com/jonschlinkert/expand-object/blob/master/index.js%23L13

https://gist.github.com/miguelafmonteiro/d8f66af61d14e06338b688f90c4dfa7c

Details

Source: Mitre, NVD

Published: 2025-04-04

Updated: 2025-04-07

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 7.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Severity: High

CVSS v4

Base 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

Severity: Medium

EPSS

EPSS: 0.00037