Cyber Resilience

CVE-2025-13262

MediumPublic PoC

Published: 17 November 2025

Published
17 November 2025
Modified
29 April 2026
KEV Added
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Patch
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CVSS Score v4 5.5 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0021 43.2th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-13262 is a medium-severity Path Traversal (CWE-22) vulnerability in Lsfusion Lsfusion Platform. Its CVSS base score is 5.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 43.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2025-13262 is a path traversal vulnerability (CWE-22) in the lsfusion platform up to version 6.1. The flaw affects the UploadFileRequestHandler function in the file platform/web-client/src/main/java/lsfusion/http/controller/file/UploadFileRequestHandler.java, where manipulation of the 'sid' argument enables path traversal.

The vulnerability allows remote exploitation over the network with low attack complexity and no privileges required (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L, base score 7.3). Attackers can achieve low-level impacts on confidentiality, integrity, and availability.

Advisories reference GitHub issues at https://github.com/lsfusion/platform/issues/1544 and https://github.com/lsfusion/platform/issues/1544#issue-3589610731, along with VulDB entries at https://vuldb.com/?ctiid.332597, https://vuldb.com/?id.332597, and https://vuldb.com/?submit.689414. The exploit has been publicly disclosed and may be utilized.

EU & UK References

Vulnerability details

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…

more

exploit has been publicly disclosed and may be utilized.

CWE(s)
CWE-22

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Path traversal in remote file upload handler of public-facing web application enables unauthenticated remote exploitation for arbitrary file placement.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-64075Shared CWE-22
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CVE-2025-0493Shared CWE-22
CVE-2025-70231Shared CWE-22
CVE-2026-43888Shared CWE-22
CVE-2025-15031Shared CWE-22
CVE-2026-25785Shared CWE-22
CVE-2025-11366Shared CWE-22
CVE-2026-1810Shared CWE-22

Affected Assets

lsfusion
lsfusion platform
≤ 6.1

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly requires validation of inputs like the 'sid' argument in UploadFileRequestHandler to block path traversal sequences such as '../'.

SI-2 Flaw Remediation good match
prevent

Mandates timely identification, reporting, and correction of the specific path traversal flaw in the lsfusion platform up to version 6.1.

AC-3 Access Enforcement partial match
prevent

Enforces approved access authorizations to restrict file system operations by the upload handler to authorized paths only, mitigating unauthorized access via traversal.

References