CVE-2025-13261 lsfusion platform DownloadFileRequestHandler.java DownloadFileRequestHandler path traversal
Remote attackers can exploit a path traversal vulnerability in the DownloadFileRequestHandler to read arbitrary files from the server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-13261?
CVE-2025-13261 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 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.
Weakness: CWE-22
Which versions are affected by CVE-2025-13261?
2 open source packages ship an affected version, including lsfusion.platform:web-client. It affects 1 product.
| Package | 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 include Lsfusion Lsfusion Platform.
How do I fix CVE-2025-13261?
No fix has been published for CVE-2025-13261 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-13261 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-13261 exists.
Other vulnerabilities in lsfusion platform
Sources
Also known as GHSA-5jpg-2rj5-964c.