What is CVE-2026-23636?

CVE-2026-23636 is a medium-severity vulnerability in Kiteworks Secure Data Forms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.5/10. Published 2026-03-25.

How severe is CVE-2026-23636?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Arbitrary file upload in Kiteworks Secure Data Forms

CVE-2026-23636

Kiteworks is a private data network (PDN). In Kiteworks Secure Data Forms prior to version 9.2.1, the manager of a form could potentially exploit an Unrestricted Upload of File with Dangerous Type due to a missing validation. Upgrade Kitew…

Vulnerability class: Unrestricted File Upload

EPSS: 0.001 (19.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L.

Affected products

Kiteworks Secure Data Forms — versions < 9.2.1

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

https://github.com/kiteworks/security-advisories/security/advisories/GHSA-cfv8-p3hq-8wmm (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-23636?: CVE-2026-23636 is a medium-severity vulnerability in Kiteworks Secure Data Forms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.5/10. Published 2026-03-25.
How severe is CVE-2026-23636?: Medium severity. CVSS v3 base score is 5.5 out of 10.