CVE-2026-93371 — A security vulnerability has been detected in marcopiovanello yt-dlp-web-ui up to v4.¶
Key facts
CVE-2026-93371 is a High (8.3) vulnerability: A security vulnerability has been detected in marcopiovanello yt-dlp-web-ui up to v4.. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-93371 |
| Severity | High (8.3) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-93371/ |
Details¶
English | 한국어
Description¶
A security vulnerability has been detected in marcopiovanello yt-dlp-web-ui up to v4. This issue affects the function NewGenericDownload of the file server/internal/downloaders/generic.go. Such manipulation of the argument params leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. The name of the patch is c7ad3bd79c7c520a7d17e7f2ba19d962be8e7897. A patch should be applied to remediate this issue.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-93371 |
| Type | COMMAND_INJECTION |
| CVSS Score | 8.3 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-93371/poc.py
Usage¶
# Run PoC against target
python3 poc.py --target <TARGET_URL>
# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>
⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.
Test Lab¶
This repository includes a Docker-based test environment with both vulnerable and patched applications.
Quick Start¶
# Clone and navigate to CVE directory
cd CVE-2026-93371
# Start both applications
docker-compose up -d
# Run tests
./run-tests.sh # Linux/Mac
./run-tests.ps1 # Windows PowerShell
Application Endpoints¶
| Application | URL | Status |
|---|---|---|
| Vulnerable App | http://localhost:8080 | Shows vulnerability |
| Patched App | http://localhost:8081 | Demonstrates fix |
Directory Structure¶
├── README.md # English documentation
├── README_KO.md # Korean documentation
├── poc.py # PoC detection script
├── docker-compose.yml # Container orchestration
├── run-tests.sh # Linux/Mac test runner
├── run-tests.ps1 # Windows test runner
├── vulnerable-app/ # Vulnerable version
│ ├── app.py
│ ├── Dockerfile
│ └── requirements.txt
└── patched-app/ # Fixed version
├── app.py
├── Dockerfile
└── requirements.txt
References¶
- https://github.com/marcopiovanello/yt-dlp-web-ui/
- https://github.com/marcopiovanello/yt-dlp-web-ui/commit/c7ad3bd79c7c520a7d17e7f2ba19d962be8e7897
- https://vuldb.com/cve/CVE-2026-93371
- https://vuldb.com/submit/942846
- https://vuldb.com/vuln/406851
- https://vuldb.com/vuln/406851/cti
Generated by PoC Generator on 2026-09-18T13:56:17.764884131
Frequently asked questions¶
What is CVE-2026-93371?¶
CVE-2026-93371 is a High (8.3) vulnerability: A security vulnerability has been detected in marcopiovanello yt-dlp-web-ui up to v4.. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-93371?¶
Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.
How do I block or mitigate CVE-2026-93371?¶
Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.
For authorized security testing and research only. See the full source and NVD record.