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CVE-2018-16492
CRITICAL
A prototype pollution vulnerability was found in module extend <2.0.2, ~<3.0.2 that allows an attacker to inject arbitrary properties onto Object.prototype.
Published: Feb 1, 2019
Modified: Jun 17, 2026
CWE-400
CWE-74
CVSS Metrics
CVSSv3
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products (2)
| Vendor | Product | Version |
|---|---|---|
| extend_project | extend | * < 2.0.2 |
| extend_project | extend | * ≥ 3.0.0 < 3.0.2 |
GitHub Security Advisory GHSA-qrmc-fj45-qfc2
Prototype Pollution in extend
npm
extend
>= 3.0.0, < 3.0.2
Fixed: 3.0.2
npm
extend
>= 1.1.3, < 2.0.2
Fixed: 2.0.2
References (2)
- https://hackerone.com/reports/381185 Exploit, Issue Tracking, Third Party Advisory
- https://hackerone.com/reports/381185 Exploit, Issue Tracking, Third Party Advisory
Risk Scores
CVSS Score
9.8 / 10
EPSS Score
3.05%
Top 14% most likely to be exploited
Threat Score
40.1 / 100
Data Sources
NVD
EPSS
GitHub