CVE-2018-16489
CRITICALCVSS 9.8/10EPSS 1.84%
Last modified
CVE-2018-16489 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A prototype pollution vulnerability was found in just-extend <4.0.0 that allows attack to inject properties onto Object.prototype through its functions.. EPSS estimates a 1.84% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Just-Extend Project | Just-Extend | < 4.0.0 |
References
- https://hackerone.com/reports/430291Exploit, Issue Tracking, Third Party Advisory
- https://hackerone.com/reports/430291Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-16489?
A prototype pollution vulnerability was found in just-extend <4.0.0 that allows attack to inject properties onto Object.prototype through its functions.
How severe is CVE-2018-16489?
CVE-2018-16489 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.84% probability of exploitation in the next 30 days.
How do I fix CVE-2018-16489?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Are you affected by CVE-2018-16489?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST