Information Exposure Affecting webpack-dev-server package, versions <3.1.11


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.3% (70th percentile)

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  • Snyk IDSNYK-JS-WEBPACKDEVSERVER-72405
  • published26 Sept 2018
  • disclosed24 Jul 2018
  • creditchromium1337

Introduced: 24 Jul 2018

CVE-2018-14732  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade webpack-dev-server to version 3.1.11 or higher.

Overview

webpack-dev-server Uses webpack with a development server that provides live reloading. It should be used for development only.

Affected versions of this package are vulnerable to Information Exposure. The origin of requests is not checked by the WebSocket server, which is used for HMR. A malicious user could receive the HMR message sent by the WebSocket server via a ws://127.0.0.1:8080/ connection from any origin.

CVSS Scores

version 3.1