Description
Markdownify version 1.4.1 allows an external attacker to remotely obtain arbitrary local files on any client that attempts to view a malicious markdown file through Markdownify. This is possible because the application does not have a CSP policy (or at least not strict enough) and/or does not properly validate the contents of markdown files before rendering them.
Remediation
References
https://fluidattacks.com/advisories/noisestorm/
https://github.com/amitmerchant1990/electron-markdownify
Related Vulnerabilities
CVE-2022-36885 Vulnerability in maven package com.coravy.hudson.plugins.github:github
CVE-2021-37695 Vulnerability in npm package ckeditor4
CVE-2022-4375 Vulnerability in maven package net.mingsoft:ms-mcms
CVE-2022-26477 Vulnerability in maven package org.apache.systemds:systemds
CVE-2021-41183 Vulnerability in maven package org.webjars.bowergithub.jquery:jquery-ui