Posts

TextMeshPro markup injection leads to whited out screen.

A mildly interesting self-xss with some additional security content & best practices worth reviewing.

Resolving an undocumented AWS Codebuild error and describing GitHub App integration security considerations.

Exploring the M365 Power Platform as a means of privilege escalation and flexing control over a phishing victim's SharePoint, OneDrive, Outlook, and Microsoft Teams data.

Bypassing the spoof geolocation feature in browser extensions to disclose the physical location of a user. I share two high severity bugs. Bug 1 is a generic payload that works across multiple extensions, and bug 2 is an ExpressVPN specific payload that has been patched. This post is a case study with the Location Guard & ExpressVPN extensions, my bug bounty experience, and a few takeaways that may prove insightful for others.

Finding the best route between multiple destinations in Google Maps or other tools can be frustrating. I have created a bespoke Chromium browser extension to help calculate a relatively optimal multi-destination travel route. Usage: Install the extension, navigate to https://maps.google.com, and use the tool.

An internal phishing POC leveraging Microsoft 365 citizen development tools (Power Platform). Phish for access to a target user's OneDrive and all SharePoint sites they own.

Slicing and manipulating images with a Python GUI program using the Pillow and tkinter GUI packages.

HackerOne hacktivity reports can have very useful (and interesting) content for learning how to test real systems for vulnerabilities. Unfortunately, it's impossible to sort on interesting fields such as severity and bounty from within the Hacktivity web UI. The goal of this post is to demonstrate a means of filtering/sorting HackerOne reports in an attempt to find writeups with valuable techniques/methodologies/strategies or other interesting information.

Configuring wordpress and email for a small business by leveraging an always free Oracle cloud VPS, Google Workspace, and an assortment of free/trial tooling.

Extracting/ripping game meshes to create a minimap Heads Up Display (HUD) showing player position.

A random redirect when opening Edge leads to an investigation discovering some interesting behavior between Edge and SharePoint.

Scanning the DOM for interesting data + hooking getters/setters. Demonstrating POC w/ a PowerApps example.

Finding and abusing size constrained XSS and a payment gateway bypass in an 18 year old MMO.

Trying to recreate the x32dbg/x64dbg stacktrace and dereferencing features in WinDbg Preview by leveraging its JavaScript API. Additionally, playing with Time Travel Debugging (TTD) and inspecting memory on the heap. POC included.

Adding custom functionality to the Joplin note-taking app by injecting arbitrary JavaScript into source code. POC included.

Fixing a bug in open source software leads to diagnosing a systemic unit testing bug.

Learning by modifying an android .apk, intercepting + decrypting network traffic, and poking at game memory (changing function arguments + return values / calling functions by virtual address).