The serialize-javascript npm package before version 2.1.1 is vulnerable to Cross-site Scripting (XSS). It does not properly mitigate against unsafe characters in serialized regular expressions. This vulnerability is not affected on Node.js environment since Node.js's implementation of RegExp.prototype.toString() backslash-escapes all forward slashes in regular expressions. If serialized data of regular expression objects are used in an environment other than Node.js, it is affected by this vulnerability.
CVE-2019-16769 - Medium Severity Vulnerability
Vulnerable Library - serialize-javascript-1.9.1.tgz
Serialize JavaScript to a superset of JSON that includes regular expressions and functions.
Library home page: https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-1.9.1.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/serialize-javascript/package.json
Dependency Hierarchy: - webpack-4.41.2.tgz (Root Library) - terser-webpack-plugin-1.4.1.tgz - :x: **serialize-javascript-1.9.1.tgz** (Vulnerable Library)
Found in HEAD commit: dfd1435f55d83fa05bb3c8833d662571b61c72e8
Found in base branch: master
Vulnerability Details
The serialize-javascript npm package before version 2.1.1 is vulnerable to Cross-site Scripting (XSS). It does not properly mitigate against unsafe characters in serialized regular expressions. This vulnerability is not affected on Node.js environment since Node.js's implementation of RegExp.prototype.toString() backslash-escapes all forward slashes in regular expressions. If serialized data of regular expression objects are used in an environment other than Node.js, it is affected by this vulnerability.
Publish Date: 2019-12-05
URL: CVE-2019-16769
CVSS 3 Score Details (4.2)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: Low - Availability Impact: Low
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16769
Release Date: 2019-12-05
Fix Resolution (serialize-javascript): 2.1.1
Direct dependency fix Resolution (webpack): 4.41.3
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