---
id: CVE-2025-53939
title: Kiteworks is a private data network (PDN)
summary: >-
  Kiteworks is a private data network (PDN). Prior to version 9.1.0, improper
  input validation when managing roles of a shared folder could lead to
  unexpectedly elevate another user's permissions on the share. This issue has
  been patched i…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-20
vendor: accellion
product: kiteworks
affected:
  - kiteworks < 9.1.0
patched:
  - kiteworks 9.1.0
published: '2025-11-29'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T20:10:01.970'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-53939'
references:
  - url: >-
      https://github.com/kiteworks/security-advisories/security/advisories/GHSA-hpf5-6376-2565
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00736
epssPercentile: 0.5297
ingestedAt: '2026-10-07T20:46:46.739Z'
---

## Overview

Kiteworks is a private data network (PDN). Prior to version 9.1.0, improper input validation when managing roles of a shared folder could lead to unexpectedly elevate another user's permissions on the share. This issue has been patched in version 9.1.0.

## Affected

- `kiteworks < 9.1.0`

## Remediation

Upgrade past the affected range:

- `kiteworks 9.1.0`