Description
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.
Remediation
References
https://securitylab.github.com/advisories/GHSL-2021-020-pillarjs-hbs/
Related Vulnerabilities
CVE-2020-26302 Vulnerability in maven package org.webjars.npm:is_js
CVE-2020-26939 Vulnerability in maven package org.bouncycastle:bcprov-ext-jdk14
CVE-2022-45208 Vulnerability in maven package org.jeecgframework.boot:jeecg-module-system
CVE-2022-21144 Vulnerability in npm package libxmljs
CVE-2021-28100 Vulnerability in maven package com.netflix.priam:priam