# CVE-2025-13262: lsfusion platform UploadFileRequestHandler.java UploadFileRequestHandler path traversal

> Remote attackers can exploit a path traversal vulnerability in the file upload handler to read or modify arbitrary files on the server.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Nov 2025
- **Updated:** 17 Nov 2025
- **Also known as:** GHSA-gwwr-j923-vq7r

## What is CVE-2025-13262?

CVE-2025-13262 is a medium-severity path traversal vulnerability in lsfusion platform, published on 17 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was determined in lsfusion platform up to 6.1. Affected by this vulnerability is the function UploadFileRequestHandler of the file platform/web-client/src/main/java/lsfusion/http/controller/file/UploadFileRequestHandler.java. Executing manipulation of the argument sid can lead to path traversal. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.

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

## Which versions are affected by CVE-2025-13262?

2 open source packages ship an affected version, including lsfusion.platform:web-client. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `lsfusion.platform:web-client` | Maven | All versions to 6.1 | None |
| `lsfusion.platform:web-client` | Maven | All versions to 6.1 | None |

Products: Lsfusion Lsfusion Platform.

## How do I fix CVE-2025-13262?

No fix has been published for CVE-2025-13262 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-13262 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-13262 exists.

## Other vulnerabilities in lsfusion platform

- [CVE-2025-13261](https://insights.sbomify.com/CVE-2025-13261/): lsfusion platform DownloadFileRequestHandler.java DownloadFileRequestHandler path traversal (medium 6.9)
- [CVE-2025-13265](https://insights.sbomify.com/CVE-2025-13265/): lsfusion platform ZipUtils.java unpackFile path traversal (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-13262 and fix it if it is affected.

What it is: CVE-2025-13262 is a medium-severity path traversal vulnerability in lsfusion platform, published on 17 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-13262 exists.

Affected packages and fixed versions:
- lsfusion.platform:web-client (Maven): affected all versions up to 6.1; no fix listed
- lsfusion.platform:web-client (Maven): affected all versions up to 6.1; no fix listed

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-2025-13262/ (Markdown: https://insights.sbomify.com/CVE-2025-13262/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-13262
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-13262
- OSV: https://osv.dev/vulnerability/CVE-2025-13262

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-13262/
Summaries are generated and may contain mistakes; the official description above is the record.