---
id: CVE-2026-95140
title: >-
  kkFileView v5.0.0 through v5.0.2 contains a directory traversal vulnerability
  in FileController.java
summary: >-
  kkFileView v5.0.0 through v5.0.2 contains a directory traversal vulnerability
  in FileController.java. The fileUpload, createFolder and existsFile endpoints
  accept a "path" parameter that is concatenated into the upload base path
  without …
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-22
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T20:17:35.070'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-95140'
references:
  - url: 'https://github.com/sg-summer/cve/issues/4'
    label: cve@mitre.org
  - url: 'https://github.com/sg-summer/cve/issues/4'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-06T19:41:15.293766Z'
ingestedAt: '2026-10-06T17:09:22.190Z'
epss: 0.00586
epssPercentile: 0.47829
---

## Overview

kkFileView v5.0.0 through v5.0.2 contains a directory traversal vulnerability in FileController.java. The fileUpload, createFolder and existsFile endpoints accept a "path" parameter that is concatenated into the upload base path without validation, allowing unauthenticated attackers to create arbitrary directories and write arbitrary files outside the intended fileDir root via a crafted multipart request

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.