Description
Nunjucks is a full featured templating engine for JavaScript. Versions 2.4.2 and lower have a cross site scripting (XSS) vulnerability in autoescape mode. In autoescape mode, all template vars should automatically be escaped. By using an array for the keys, such as `name[]=`, it is possible to bypass autoescaping and inject content into the DOM.
Remediation
References
https://github.com/matt-/nunjucks_test
https://github.com/mozilla/nunjucks/issues/835
https://nodesecurity.io/advisories/147
Related Vulnerabilities
CVE-2022-25894 Vulnerability in maven package com.bstek.uflo:uflo-core
CVE-2020-15366 Vulnerability in npm package ajv
CVE-2017-16185 Vulnerability in npm package uekw1511server
CVE-2022-39239 Vulnerability in npm package @netlify/ipx
CVE-2023-40989 Vulnerability in maven package org.jeecgframework.boot:jeecg-boot-common