Florian Port on Insinuator.net - Bold Statements

Vulnerability Disclosure: Stealing Emails via Firefox’s AI Features

Tue, 16 Jun 2026 00:00:00 +0000

Imagine the following: You visit a webpage with a lot of text you don’t want to read and ask your AI assistant for a summary. A few moments later, the AI assistant has extracted one of your emails and sent it to an attacker without you ever knowing.

In October 2025, we found exactly this vulnerability in Firefox’s AI chatbot integration¹.

Firefox offers a summarization, explaination and proofread AI feature. When a user makes use of one of these features, Firefox pastes a prompt into the sidebar AI chat including the page title, the selected text (or, if the whole page is summarized, a selection is being made by Firefox) and an instruction on how to process the provided text. The sidebar AI chat is essentially an IFrame of a third-party chatbot (Claude, Copilot, …).

Vulnerability Disclosure: Stealing Emails via Prompt Injections

Tue, 02 Sep 2025 00:00:00 +0000

With the rise of AI assistance features in an increasing number of products, we have begun to focus some of our research efforts on refining our internal detection and testing guidelines for LLMs by taking a brief look at the new AI integrations we discover.

Alongside the rise of applications with LLM integrations, an increasing number of customers come to ERNW to specifically assess AI applications. Our colleagues Florian Grunow and Hannes Mohr analyzed the novel attack vectors that emerged and presented the results at TROOPERS24 already.

Full Disclosure: Multiple Rundeck Job Command Injections

Mon, 05 May 2025 00:00:00 +0000

During a red-teaming-style customer project, we managed to get access to an Rundeck API token. Rundeck is a job scheduler and runbook automation platform designed to automate routine IT tasks across multiple systems. At first, we were excited about this API token because if we could create new Rundeck jobs, we could execute arbitrary code on the Rundeck nodes and move laterally from there. However, it turned out that with this token we only had permissions to run existing jobs.

Vulnerability in Jitsi Meet: Meeting Password Disclosure affecting Meetings with Lobbies

Thu, 02 May 2024 00:00:00 +0000

During a customer project, we identified a logic flaw in Jitsi Meet, an open-source video conferencing and messaging platform for secure video conferencing, voice calls, and messaging. The vulnerability affects password protected Jitsi meetings that make use of a lobby. This logic flaw leads to the disclosure of the meeting password when a user is invited to the call after waiting in the lobby.

Jitsi offers two security options to meeting moderators. Firstly, the meeting can be assigned a password that must be entered when joining. Secondly, a lobby mode can be activated, which first adds joining users to a lobby, from where they can then be added to the meeting by a user with moderation permissions.