# CVE-2025-9409: lostvip-com ruoyi-go CommonController.go DownloadUpload path traversal

> Remote attackers can exploit a path traversal vulnerability in the download function to read arbitrary files from the server.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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:** 25 Aug 2025
- **Updated:** 25 Aug 2025
- **Also known as:** GHSA-qvjm-g2p7-f2wp

## What is CVE-2025-9409?

CVE-2025-9409 is a medium-severity path traversal vulnerability in lostvip-com ruoyi-go, published on 25 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A security flaw has been discovered in lostvip-com ruoyi-go up to 2.1. Impacted is the function DownloadTmp/DownloadUpload of the file modules/system/controller/CommonController.go. Performing manipulation of the argument fileName results in path traversal. It is possible to initiate the attack remotely. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2025-9409?

It affects 1 product.


Products: Lostvip Ruoyi-Go.

## How do I fix CVE-2025-9409?

No fix has been published for CVE-2025-9409 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-9409 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-9409 exists.

## Other vulnerabilities in lostvip-com ruoyi-go

- [CVE-2025-10218](https://insights.sbomify.com/CVE-2025-10218/): lostvip-com ruoyi-go Background Management SysRoleDao.go SelectListPage sql injection (medium 5.3)
- [CVE-2025-9410](https://insights.sbomify.com/CVE-2025-9410/): lostvip-com ruoyi-go GenTableDao.go SelectListByPage sql injection (medium 5.3)
- [CVE-2025-9411](https://insights.sbomify.com/CVE-2025-9411/): lostvip-com ruoyi-go LoginInforService.go SelectPageList sql injection (medium 5.3)
- [CVE-2025-9412](https://insights.sbomify.com/CVE-2025-9412/): lostvip-com ruoyi-go DictDataDao.go SelectListByPage sql injection (medium 5.3)
- [CVE-2025-9413](https://insights.sbomify.com/CVE-2025-9413/): lostvip-com ruoyi-go system_router.go SelectListByPage sql injection (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-9409 and fix it if it is affected.

What it is: CVE-2025-9409 is a medium-severity path traversal vulnerability in lostvip-com ruoyi-go, published on 25 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-2025-9409 exists.

Affected product: lostvip-com ruoyi-go. 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-2025-9409/ (Markdown: https://insights.sbomify.com/CVE-2025-9409/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-9409
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-9409
- OSV: https://osv.dev/vulnerability/CVE-2025-9409

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-9409/
Summaries are generated and may contain mistakes; the official description above is the record.