Critical · published October 9, 2025
🚨 A sneaky file write vulnerability in Grafana's Image Renderer can lead to remote code execution! An attacker could leverage this without breaking a sweat if they know the default token. 🔥 Think of it like a restaurant that lets you write any dish on the order pad without checking the menu. If an attacker knows the default order and can access the kitchen, they could whip up something malicious without anyone noticing! With this vulnerability, an attacker could save malicious code to any location on the server, which could then be executed by the Chromium process. This means total chaos could ensue—data breaches, unauthorized access, or even complete system takeover!
Think of it like a restaurant that lets you write any dish on the order pad without checking the menu. If an attacker knows the default order and can access the kitchen, they could whip up something malicious without anyone noticing! This vulnerability stems from the lack of validation on the filePath parameter at the /render/csv endpoint. Attackers can exploit this oversight to write arbitrary files, leading to remote code execution.
With this vulnerability, an attacker could save malicious code to any location on the server, which could then be executed by the Chromium process. This means total chaos could ensue—data breaches, unauthorized access, or even complete system takeover! To patch this vulnerability, change the default 'authToken' immediately, and ensure strict validation on the filePath parameter to prevent unauthorized file writes. Update the 'grafana-image-renderer' to version 4.0.17 or higher as soon as possible! You've got this! Follow these steps to secure your setup, and rest easy knowing you're a security hero! 🛡️