The npm hbs package is an Express view engine wrapper for Handlebars. Depending on usage, users of hbs may be vulnerable to a file disclosure vulnerability. There is currently no patch for this vulnerability. hbs mixes pure template data with engine configuration options through the Express render API. By overwriting internal configuration options a file disclosure vulnerability may be triggered in downstream applications. For an example PoC see the referenced GHSL-2021-020.
CVE-2021-32822 - Medium Severity Vulnerability
Express.js template engine plugin for Handlebars
Library home page: https://registry.npmjs.org/hbs/-/hbs-4.1.2.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/hbs/package.json
Dependency Hierarchy: - :x: **hbs-4.1.2.tgz** (Vulnerable Library)
Found in HEAD commit: ba236fd18ec3e6450d68d675bce1609d2e5d3230
Found in base branch: main
The npm hbs package is an Express view engine wrapper for Handlebars. Depending on usage, users of hbs may be vulnerable to a file disclosure vulnerability. There is currently no patch for this vulnerability. hbs mixes pure template data with engine configuration options through the Express render API. By overwriting internal configuration options a file disclosure vulnerability may be triggered in downstream applications. For an example PoC see the referenced GHSL-2021-020.
Publish Date: 2021-08-16
URL: CVE-2021-32822
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Changed - Impact Metrics: - Confidentiality Impact: Low - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here.