description: Zettlr version 2.3.0 allows an external attacker to remotely obtain arbitrary local files on any client that attempts to view a malicious markdown file through Zettlr. 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.
problem types: Insecure or unset HTTP headers - Content-Security-Policy
affected:
{
vendor: n/a
product: Zettlr
versions:
version: 2.3.0, status: affected
}