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.
Vulnerable Library - hbs-4.2.0.tgz
Express.js template engine plugin for Handlebars
Library home page: https://registry.npmjs.org/hbs/-/hbs-4.2.0.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/hbs/package.json
Vulnerabilities
Details
CVE-2021-32822
### Vulnerable Library - hbs-4.2.0.tgzExpress.js template engine plugin for Handlebars
Library home page: https://registry.npmjs.org/hbs/-/hbs-4.2.0.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/hbs/package.json
Dependency Hierarchy: - :x: **hbs-4.2.0.tgz** (Vulnerable Library)
Found in base branch: master
### Vulnerability DetailsThe 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
### CVSS 3 Score Details (5.3)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: Low - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://nvd.nist.gov/vuln/detail/CVE-2021-32822
Release Date: 2021-08-16
Fix Resolution: hbs - 4.1.2
:rescue_worker_helmet: Automatic Remediation is available for this issue:rescue_worker_helmet: Automatic Remediation is available for this issue.