# CVE-2025-8839: jshERP Endpoint addUser improper authorization

> Remote attackers can bypass authorization on the addUser endpoint to create unauthorized users, requiring an upgrade to jshERP.

- **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-5c6r-8224-rmwh

## What is CVE-2025-8839?

CVE-2025-8839 is a medium-severity missing authorization vulnerability in jshERP, 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 found in jshERP up to 3.5. This issue affects some unknown processing of the file /jshERP-boot/user/addUser of the component Endpoint. The manipulation leads to improper authorization. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-285 (Improper Authorization), CWE-266 (Incorrect Privilege Assignment)

## Which versions are affected by CVE-2025-8839?

It affects 1 product.


Products: Jishenghua Jsherp.

## How do I fix CVE-2025-8839?

No fix has been published for CVE-2025-8839 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-8839 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8839 exists.

## Other vulnerabilities in jshERP

- [CVE-2025-51742](https://insights.sbomify.com/CVE-2025-51742/): Deserialization in n/a (critical 9.8)
- [CVE-2025-51743](https://insights.sbomify.com/CVE-2025-51743/): Deserialization in n/a (critical 9.8)
- [CVE-2025-51744](https://insights.sbomify.com/CVE-2025-51744/): Deserialization in n/a (critical 9.8)
- [CVE-2025-51745](https://insights.sbomify.com/CVE-2025-51745/): Deserialization in n/a (critical 9.8)
- [CVE-2025-51746](https://insights.sbomify.com/CVE-2025-51746/): Deserialization in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-8839 and fix it if it is affected.

What it is: CVE-2025-8839 is a medium-severity missing authorization vulnerability in jshERP, 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-2025-8839 exists.

Affected product: jshERP. 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-2025-8839/ (Markdown: https://insights.sbomify.com/CVE-2025-8839/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-8839
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-8839
- OSV: https://osv.dev/vulnerability/CVE-2025-8839

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-8839/
Summaries are generated and may contain mistakes; the official description above is the record.