Prototype Pollution in Hackerone Lodash Node Module

CVE-2018-3721

lodash node module before 4.17.5 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability via defaultsDeep, merge, and mergeWith functions, which allows a malicious user to modify the prototype of "Object" via __proto__…

EPSS: 0.024 (82.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-3721?
CVE-2018-3721 is a medium-severity vulnerability in Hackerone Lodash Node Module, classified under Modification of Assumed-Immutable Data (MAID). CVSS score: 6.5/10. Published 2018-06-07.
How severe is CVE-2018-3721?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2018-3721 known to be exploited?
17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.