CVE-2020-7774 Detail

Current Description

This affects the package y18n before 3.2.2, 4.0.1 and 5.0.5. PoC by po6ix: const y18n = require('y18n')(); y18n.setLocale('__proto__'); y18n.updateLocale({polluted: true}); console.log(polluted); // true


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  N/A
NVD score not yet provided.

Nist CVSS score does not match with CNA score
CNA:  Snyk
Base Score:  7.3 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings. A CNA provided score within the CVE List has been displayed.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/yargs/y18n/issues/96 Exploit  Third Party Advisory 
https://github.com/yargs/y18n/pull/108 Patch  Third Party Advisory 
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1038306 Exploit  Third Party Advisory 
https://snyk.io/vuln/SNYK-JS-Y18N-1021887 Exploit  Third Party Advisory 
https://www.oracle.com/security-alerts/cpuApr2021.html

Weakness Enumeration

CWE-ID CWE Name Source
CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes cwe source acceptance level NIST  

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-7774
NVD Published Date:
11/17/2020
NVD Last Modified:
07/21/2021
Source:
Snyk