[Security] Bump y18n from 3.2.1 to 4.0.0

[dependabot-preview]

Bumps y18n from 3.2.1 to 4.0.0. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Prototype Pollution

Overview

The npm package y18n before versions 3.2.2, 4.0.1, and 5.0.5 is vulnerable to Prototype Pollution.

POC

const y18n = require('y18n')();
y18n.setLocale('proto');
y18n.updateLocale({polluted: true});
console.log(polluted); // true

Recommendation

Upgrade to version 3.2.2, 4.0.1, 5.0.5 or later.

Affected versions: < 3.2.2

Changelog

Sourced from y18n's changelog.

4.0.0 (2017-10-10)

Bug Fixes

• allow support for falsy values like 0 in tagged literal (#45) (c926123)

Features

• __: added tagged template literal support (#44) (0598daf)

BREAKING CHANGES

• __: dropping Node 0.10/Node 0.12 support

Commits

• 45d2568 chore(release): 4.0.0
• 9f11b1e chore: add standard-version as npm run release (#54)
• d6fa907 chore(package): update mocha to version 4.0.1 (#52)
• 0594bc4 chore(package): update coveralls to version 3.0.0 (#51)
• f69b8ca chore(package): update chai to version 4.0.1 (#46)
• c926123 fix: allow support for falsy values like 0 in tagged literal (#45)
• c66f8ba chore(package): update nyc to version 11.0.1 (#47)
• 0598daf feat(__): added tagged template literal support (#44)
• 77f684e chore(package): update standard to version 10.0.0-beta.0 (#40)
• c0695ca chore(package): update nyc to version 10.0.0
• Additional commits viewable in compare view

Maintainer changes

This version was pushed to npm by nexdrew, a new releaser for y18n since your current version.

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