Kiteworks Core versions 9.2.0 and 9.2.1 contain an access control flaw that permits authenticated users to view data they do not own. This improper ownership management can lead to the disclosure of confidential information. The vulnerability is categorized as CWE-282 and carries a CVSS score of 8.8, indicating high severity.

The affected product is Accellion Kiteworks Core, specifically versions 9.2.0 and 9.2.1. These are versions of the private data network software. Users running these releases are susceptible to the flaw until a patch is applied.

The CVSS score of 8.8 reflects a high risk, while the EPSS of less than 1 % suggests limited exploitation in the wild. The vulnerability requires authentication, meaning users with valid credentials could abuse the flaw. It is not currently listed in the CISA KEV catalog. Because the exploit path is purely internal and limited to legitimate accounts, the likelihood of attack is moderate, but the potential for sensitive data exposure warrants prompt remediation.