Description
Handlebars before 3.0.8 and 4.x before 4.5.3 is vulnerable to Arbitrary Code Execution. The lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript. This can be used to run arbitrary code on a server processing Handlebars templates or in a victim's browser (effectively serving as XSS).
Remediation
References
https://snyk.io/vuln/SNYK-JS-HANDLEBARS-534478
https://www.npmjs.com/advisories/1316
https://www.npmjs.com/advisories/1324
Related Vulnerabilities
CVE-2020-10673 Vulnerability in maven package com.fasterxml.jackson.core:jackson-databind
CVE-2016-10538 Vulnerability in maven package org.webjars.npm:cli
CVE-2019-20330 Vulnerability in maven package com.fasterxml.jackson.core:jackson-databind
CVE-2018-1000632 Vulnerability in maven package org.jenkins-ci.dom4j:dom4j
CVE-2018-16492 Vulnerability in maven package org.webjars.npm:extend