CVE-2026-28270 MEDIUM

CVE-2026-28270: Kiteworks Core has an Unrestricted Upload of File with Dangerous Type

Vendor Kiteworks
Product security-advisories
Weakness CWE-434 · Unrestricted file upload
Published February 27, 2026
Last update March 3, 2026
View on NVD All CVEs

CVSS base score

4.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

What the vulnerability does

01Description

Kiteworks is a private data network (PDN). Prior to version 9.2.0, a vulnerability in Kiteworks configuration allows uploading of arbitrary files without proper validation. Malicious administrators could exploit this to upload unauthorized file types to the system. Version 9.2.0 contains a patch for the issue.

Key dates

02Disclosure timeline

February 27, 2026 CVE published
March 3, 2026 Record updated