High · published December 10, 2025
⚡ A sneaky directory traversal vulnerability lets attackers read any file on your server, simply by using the App.add_media_files() function — how's that for an unwelcome surprise?! 🔍 Think of it like a restaurant where the chef, without a second glance, lets anyone into the pantry full of top-secret recipes just because they were handed a menu — a huge risk for everything inside! If an attacker exploits this flaw, they could access sensitive files on your server, potentially revealing private information or even application secrets. This breach could lead to unauthorized access and serious reputational damage, putting your system and users at significant risk!
Think of it like a restaurant where the chef, without a second glance, lets anyone into the pantry full of top-secret recipes just because they were handed a menu — a huge risk for everything inside! This directory traversal vulnerability in NiceGUI versions 3.3.1 and below allows remote attackers to manipulate file paths, gaining access to files on the server that should remain hidden.
If an attacker exploits this flaw, they could access sensitive files on your server, potentially revealing private information or even application secrets. This breach could lead to unauthorized access and serious reputational damage, putting your system and users at significant risk! Immediately upgrade to NiceGUI version 3.4.0 to ensure protection against this vulnerability. Additionally, review your application logic to restrict unauthorized access and validate file paths properly. You’ve got this! Stay safe by taking these steps to lock things down. 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| zauberzeug/nicegui | < 3.4.0 | 3.4.0 |