What’s Vulnerable › Vulnerabilities
CVE-2026-28270: Kiteworks Core has an Unrestricted Upload of File with Dangerous Type
- Severity: high (CVSS 7.2 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.8% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-02-27 · updated 2026-06-17
- Weakness: CWE-434
Description
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.
Affected products
- Kiteworks Email Protection Gateway: before 9.2.0 — fixed in 9.2.0
How to fix
Upgrade to a fixed version: Kiteworks Email Protection Gateway 9.2.0. Check the vendor advisory for mitigations.
References
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