Code Injection Affecting lodash package, versions <4.17.21


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
0.86% (83rd percentile)

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  • Snyk IDSNYK-JS-LODASH-1040724
  • published15 Feb 2021
  • disclosed17 Nov 2020
  • creditMarc Hassan

Introduced: 17 Nov 2020

CVE-2021-23337  (opens in a new tab)
CWE-94  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade lodash to version 4.17.21 or higher.

Overview

lodash is a modern JavaScript utility library delivering modularity, performance, & extras.

Affected versions of this package are vulnerable to Code Injection via template.

PoC

var _ = require('lodash');

_.template('', { variable: '){console.log(process.env)}; with(obj' })()

CVSS Scores

version 3.1