# CVE-2025-54962: File upload in OpenPLC v3

> Authenticated users can upload arbitrary files to the OpenPLC Runtime webserver, potentially leading to code execution or data modification.

- **Severity:** Medium 6.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Aug 2025
- **Updated:** 4 Aug 2025
- **Also known as:** GHSA-5xhx-49mv-9j7j

## What is CVE-2025-54962?

CVE-2025-54962 is a medium-severity vulnerability in thiagoralves OpenPLC_v3, published on 4 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2025-54962?


## How do I fix CVE-2025-54962?

No fix has been published for CVE-2025-54962 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-54962 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-54962 exists.

Public exploit code:

- Authenticated users can upload arbitrary files (e.g. .html, .svg) as profile images in OpenPLC Runtime. These files are publicly accessible without authentication, allowing stored XSS or malicious content delivery . (github_poc): https://github.com/Eyodav/CVE-2025-54962

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-54962 and fix it if it is affected.

What it is: CVE-2025-54962 is a medium-severity vulnerability in thiagoralves OpenPLC_v3, published on 4 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-54962 exists.

Affected product: thiagoralves OpenPLC_v3. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-54962/ (Markdown: https://insights.sbomify.com/CVE-2025-54962/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-54962
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-54962
- OSV: https://osv.dev/vulnerability/CVE-2025-54962

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-54962/
Summaries are generated and may contain mistakes; the official description above is the record.