CVE-2025-3197

Public Exploit

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

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

Frequently Asked Questions

What is the severity of CVE-2025-3197?: CVE-2025-3197 has been scored as a medium severity vulnerability.
How to fix CVE-2025-3197?: To fix CVE-2025-3197, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-3197 being actively exploited in the wild?: It is possible that CVE-2025-3197 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-3197?: CVE-2025-3197 affects n/a expand-object.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.

Description

Category

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

References

Frequently Asked Questions