Description
NiceGUI is a Python-based UI framework. Versions 3.3.1 and below are vulnerable to directory traversal through the App.add_media_files() function, which allows a remote attacker to read arbitrary files on the server filesystem. This issue is fixed in version 3.4.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| zauberzeug | nicegui | < 3.4.0 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
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prokeon5991-wq/cve-2025-66645 ★ 0 · Oct 15, 2026
NiceGUI Path Traversal CTF Challenge
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | nicegui | < 3.4.0 | 3.4.0 | GHSA-hxp3-63hc-5366 |