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This affects the package y18n before 5.0.5. PoC by po6ix: const y18n = require('y18n')(); y18n.setLocale('proto'); y18n.updateLocale({polluted: true}); console.log(polluted); // true
CVE-2020-7774 - High Severity Vulnerability
Vulnerable Libraries - y18n-5.0.2.tgz, y18n-4.0.0.tgz
y18n-5.0.2.tgz
the bare-bones internationalization library used by yargs
Library home page: https://registry.npmjs.org/y18n/-/y18n-5.0.2.tgz
Path to dependency file: esri-leaflet/package.json
Path to vulnerable library: esri-leaflet/node_modules/y18n/package.json
Dependency Hierarchy:
y18n-4.0.0.tgz
the bare-bones internationalization library used by yargs
Library home page: https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz
Path to dependency file: esri-leaflet/package.json
Path to vulnerable library: esri-leaflet/node_modules/mocha/node_modules/y18n/package.json
Dependency Hierarchy:
Found in HEAD commit: f1b0ab628654274f9a5824429382197d038bb5c5
Found in base branch: master
Vulnerability Details
This affects the package y18n before 5.0.5. PoC by po6ix: const y18n = require('y18n')(); y18n.setLocale('proto'); y18n.updateLocale({polluted: true}); console.log(polluted); // true
Publish Date: 2020-11-17
URL: CVE-2020-7774
CVSS 3 Score Details (7.3)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7774
Release Date: 2020-11-17
Fix Resolution: 5.0.5
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