CVE-2025-13262 — web-client
CVE-2025-13262 is a Path Traversal vulnerability in lsfusion.platform:web-client. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.
lsfusion platform UploadFileRequestHandler.java UploadFileRequestHandler path traversal
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
Exploitation and automatability from CISA’s SSVC triage for CVE-2025-13262.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
Real-World Exposure
lsfusion.platform:web-clientReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | lsfusion.platform:web-client | all versions | No fix |
Affected Products
lsfusion platformlsfusionDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for lsfusion.platform:web-client, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
The records we use list no patched version of lsfusion.platform:web-client for CVE-2025-13262. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.
Mitigate without a patch
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.
Frequently Asked Questions
Is CVE-2025-13262 in your dependencies?
Find it across Maven, including transitive dependencies.