CVE-2026-25732 NiceGUI's Path Traversal via Unsanitized FileUpload.name Enables Arbitrary File Write

NiceGUI is a Python-based UI framework. Prior to 3.7.0, NiceGUI's FileUpload.name property exposes client-supplied filename metadata without sanitization, enabling path traversal when developers use the pattern UPLOADDIR / file.name. Malicious filenames containing ../ sequences allow attackers to...

CVE-2026-25732: Improper Limitation of a Pathname to a Restricted Directory

NiceGUI is a Python-based UI framework. Prior to 3.7.0, NiceGUI's FileUpload.name property exposes client-supplied filename metadata without sanitization, enabling path traversal when developers use the pattern UPLOADDIR / file.name. Malicious filenames containing ../ sequences allow attackers to...