---
id: CVE-2026-54414
title: >-
  FileRise before 3.16.0 is vulnerable to path traversal in the shared-folder
  upload endpoint (/api/folder/uploadToSharedFolder.php), leading to arbitrary
  file write and administrator account takeover
summary: >-
  FileRise before 3.16.0 is vulnerable to path traversal in the shared-folder
  upload endpoint (/api/folder/uploadToSharedFolder.php), leading to arbitrary
  file write and administrator account takeover. The upload filename is
  validated by F…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-22
  - CWE-434
published: '2026-06-19'
updated: '2026-08-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-54414'
references:
  - url: 'https://github.com/error311/FileRise'
    label: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
  - url: >-
      https://github.com/error311/FileRise/blob/v3.15.0/src/FileRise/Domain/UploadModel.php#L1023
    label: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
  - url: 'https://github.com/error311/FileRise/releases/tag/v3.16.0'
    label: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
tags:
  - nvd
epss: 0.00664
epssPercentile: 0.49643
ingestedAt: '2026-08-10T12:39:47.189Z'
---

## Overview

FileRise before 3.16.0 is vulnerable to path traversal in the shared-folder upload endpoint (/api/folder/uploadToSharedFolder.php), leading to arbitrary file write and administrator account takeover. The upload filename is validated by FolderController with basename and REGEX_FILE_NAME, which permit URL-encoded sequences (the regex blocks / and \ but not %).

## Remediation

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