Security Vulnerabilities
Improper authentication in a Kiteworks Email Protection Gateway administrative service. An administrative service in Kiteworks Email Protection Gateway did not consistently enforce administrator authentication, so the required password check could be bypassed. An attacker who referenced a valid administrator account could potentially create, modify, or delete internal users and managed domains and change their security-feature configuration without authenticating; deleting a managed domain also removes its user accounts and could lock administrators out of the gateway.
CVSS Score
9.1
EPSS Score
0.011
Published
2026-09-30
Kiteworks Core contains a business logic flaw in a Kiteworks file-request feature allowed an authenticated user to send a request that appeared to originate from another user, because the server did not verify that the requester was authorized to act as the specified account. This could be used to solicit files or information from a recipient under a trusted identity; exploitation requires the feature to be enabled for the attacker's profile and the targeted recipient to act on the request.
CVSS Score
4.6
EPSS Score
0.002
Published
2026-09-30
An authenticated administrator of Kiteworks Email Protection Gateway could submit a crafted serialized object to a cluster management interface that was deserialized without sufficient validation, potentially allowing arbitrary code execution in the context of the gateway service account. Exploitation requires an administrator account holding a specific queue-management privilege.
CVSS Score
7.2
EPSS Score
0.015
Published
2026-09-30
A SQL injection vulnerability existed in Kiteworks Secure Data Forms, where a value derived from the authenticated user's stored account data was incorporated into a database query without proper sanitization. An authenticated user could potentially influence that value to inject SQL. Exploitation requires an authenticated session and applies only to deployments where a specific optional feature is in use.
CVSS Score
7.1
EPSS Score
0.004
Published
2026-09-30
An endpoint used during initial appliance setup did not require authentication and did not correctly enforce its intended state precondition, so during the initial activation window an unauthenticated network attacker could repeatedly re-trigger the privileged activation process. This could disrupt setup and leave the appliance in an incompletely configured state. The issue is only reachable while an appliance is being activated for the first time and not yet fully configured.
CVSS Score
5.9
EPSS Score
0.002
Published
2026-09-30
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Server-Side Request Forgery. Kiteworks Email Protection Gateway performed server-side fetches of URLs contained in the message content it processed, without adequately restricting the fetch destination. A remote, unauthenticated sender could craft a message that caused the gateway to issue requests to internal services and cloud instance metadata endpoints and return the responses, potentially disclosing sensitive internal data and, depending on the internal service reached, affecting its state.
CVSS Score
9.1
EPSS Score
0.004
Published
2026-09-30
Kiteworks Core before version 9.5.0 is vulnerable to OS Command Injection that allows an authenticated administrator to upload a configuration package whose contents were not sufficiently validated before being processed. A crafted package could cause the underlying system to execute arbitrary operating-system commands, potentially with elevated privileges, on the affected appliance.
CVSS Score
7.2
EPSS Score
0.033
Published
2026-09-30
Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Remote Code Execution. Kiteworks Email Protection Gateway allowed an authenticated administrator to import configuration whose contents were not sufficiently validated before being processed. A crafted submission could potentially allow arbitrary commands to be executed on the affected gateway.
CVSS Score
7.2
EPSS Score
0.022
Published
2026-09-30
Kiteworks Core before version 9.5.0 is vulnerable to SQL Injection. A stored SQL injection vulnerability in a Kiteworks administrative reporting feature could allow an authenticated administrator to read sensitive data from the underlying database and to affect the availability of the service. Exploitation requires an existing, authenticated administrative account with access to the affected reporting function.
CVSS Score
7.2
EPSS Score
0.01
Published
2026-09-30
Kiteworks Core before version 9.5.0 is vulnerable to Arbitrary File Write. An improper restriction of a user-supplied file path in a Kiteworks administrative export feature could allow an authenticated administrator to write a file to an arbitrary location on the underlying host, potentially leading to command execution on the appliance. Exploitation requires an existing, authenticated administrative account with access to the affected export function.
CVSS Score
7.2
EPSS Score
0.02
Published
2026-09-30