Hacked.be
About Me
Hello, I'm Rein Daelman, welcome to my blog! I'm a security researcher and freelance pentester.
My CVEs (12)
Loading reputation…
“trein has submitted a number of very well written and valuable reports which helped us better secure Mozilla VPN. The communication is also clear and professional, thank you for all your contributions.”Mozilla
Write-ups
PromptPwnd: Prompt Injection Vulnerabilities in GitHub Actions Using AI Agents
View on Aikido
How I hacked Google's Gemini CLI, and numerous other fortune 500 companies, via prompt injections in GitHub Actions.
Dec 4, 2025
Mozilla VPN Clients: RCE via file write and path traversal
View on HackerOneHow I got RCE on the Mozilla VPN client via a file write and path traversal through a websocket connection.
Feb 15, 2025
CVE-2024-9504 - Stored XSS via SVG File Upload

CVE-2024-9504 is a security flaw in the 'Booking calendar, Appointment Booking System' WordPress plugin. The vulnerability allows attackers to upload SVG files, resulting in stored XSS.
Nov 30, 2024Rein Daelman
CVE-2024-8856 - Unauthenticated RCE via Arbitrary File Upload

Today, I wanted to talk about CVE-2024-8856, a critical vulnerability I found and reported through WordFence. The issue was found in the WP Time Capsule plugin, which has over 20,000 active installations.
Nov 20, 2024Rein Daelman