CVE-2018-16489
CRITICAL
9.8
CVSS Score
Published: February 1, 2019 at 06:00 PM UTC
Updated: June 17, 2026 at 01:44 AM UTC
1 product affected across 1 vendorJust Extend
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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
Description
A prototype pollution vulnerability was found in just-extend <4.0.0 that allows attack to inject properties onto Object.prototype through its functions.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 4.0.0
Affected range stops below 4.0.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://hackerone.com/reports/430291CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-400CWE-74
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