Advisories for Npm/Rendertron package

An attacker can use a specially crafted webpage to force a rendertron headless chrome process to render internal sites it has access to, and display it as a screenshot.

Rendertron allows for alternative protocols such as file:// introducing a Local File Inclusion (LFI) bug where arbitrary files can be read by a remote attacker.

Installed packages are exposed by node_modules in Rendertron, allowing remote attackers to read absolute paths on the server by examining the _where attribute of package.json files.

Error reporting within Rendertron allows reflected Cross Site Scripting (XSS) from invalid URLs.

Rendertron includes an _ah/stop route to shut down the Chrome instance responsible for serving render requests to all users. Visiting this route with a GET request allows any unauthorized remote attacker to disable the core service of the application.