# CVE-2025-8841: zlt2000 microservices-platform FileController.java upload unrestricted upload

> Attackers can upload malicious files to the file center, potentially leading to remote code execution or data modification.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **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:** 11 Aug 2025
- **Updated:** 11 Aug 2025
- **Also known as:** GHSA-56pj-vpvp-4mhh

## What is CVE-2025-8841?

CVE-2025-8841 is a medium-severity vulnerability in zlt2000 microservices-platform, published on 11 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was identified in zlt2000 microservices-platform up to 6.0.0. Affected by this vulnerability is the function Upload of the file zlt-business/file-center/src/main/java/com/central/file/controller/FileController.java. The manipulation leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2025-8841?

It affects 1 product.


Products: Zlt2000 Microservices-Platform.

## How do I fix CVE-2025-8841?

No fix has been published for CVE-2025-8841 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-8841 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8841 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-8841 and fix it if it is affected.

What it is: CVE-2025-8841 is a medium-severity vulnerability in zlt2000 microservices-platform, published on 11 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-2025-8841 exists.

Affected product: zlt2000 microservices-platform. 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-2025-8841/ (Markdown: https://insights.sbomify.com/CVE-2025-8841/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-8841
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-8841
- OSV: https://osv.dev/vulnerability/CVE-2025-8841

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-8841/
Summaries are generated and may contain mistakes; the official description above is the record.