CVE-2023-39141 — AI Deep Analysis Summary

🚨 **Essence**: WebUI-Aria2 suffers from a **Path Traversal** vulnerability. The app accepts filenames from URLs without cleaning them.…

🛡️ **Root Cause**: **Input Validation Failure**. The application fails to sanitize user-supplied filenames from URL inputs. This allows directory traversal sequences (like `../`) to escape the intended directory.…

🎯 **Affected**: **WebUI-Aria2** by developer **hamza zia**. Specifically, version **4fe2e** is vulnerable. 📦 **Component**: The Node.js server component handling file requests.

🕵️ **Attacker Capabilities**: Hackers can **enumerate remote server files and directories**. They can read sensitive configuration files, source code, or user data stored on the server.…

⚠️ **Exploitation Threshold**: **Low to Medium**. The vulnerability stems from URL input handling. If the WebUI is exposed to the internet, exploitation is straightforward.…

🔓 **Public Exploit**: **Yes**. Public PoCs exist on GitHub (e.g., `CVE-2023-39141-LFI-enumerator`). Tools like **Nuclei** have templates for automated detection. 🚀 Wild exploitation is possible using these scripts.

🔍 **Self-Check**: Use **Nuclei** with the specific CVE template. Manually test by injecting path traversal sequences (`../../etc/passwd`) into filename parameters in URLs.…

🩹 **Official Fix**: The data references a specific commit (`4fe2e`) as vulnerable and points to a later commit (`109903f...`) in the repo. Users should **update to the latest version** of WebUI-Aria2 to mitigate this. ✅

🚧 **No Patch Workaround**: **Restrict Network Access**. Do not expose the WebUI-Aria2 interface to the public internet. Use **firewalls** or **reverse proxies** with strict input filtering. 🛑

🔥 **Urgency**: **High**. Since public PoCs and automated scanning tools (Nuclei) are available, active exploitation is likely. Immediate patching or network isolation is recommended. ⏳