High severity · published Mar 25, 2026
CVE-2026-23636
Kiteworks Secure Data Forms is vulnerable to an Unrestricted Upload of File with Dangerous Type
7.2
CVSS
1%
EPSS
No
On KEV
Description
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 Kiteworks to version 9.2.1 or later to receive a patch.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SD
Secure Data Forms · kiteworks
< 9.2.1 · source: vendor
KI
Kiteworks · Accellion
before 9.2.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-23636
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-23636
Vendor Advisory
https://github.com/kiteworks/security-advisories/security/advisories/GHSA-cfv8-p3hq-8wmm
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