Privilege escalation in Accellion Kiteworks Managed File Transfer
CVE-2025-53900
Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, an unfavourable definition of roles and permissions in Kiteworks MFT on managing Connections could lead to unexpected escalation of privileges for authorized users. This issue has been patched in version 9.1.0.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.011 (66.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Accellion Kiteworks Managed File Transfer
- Kiteworks Security-Advisories — versions < 9.1.0
Weakness classification (CWE)
References
- github.com/kiteworks/security-advisories/security/advisories/GHSA-gjq3-8v6p-2h6h (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-53900?
- CVE-2025-53900 is a medium-severity vulnerability in Accellion Kiteworks Managed File Transfer, classified under Privilege Defined With Unsafe Actions. CVSS score: 6.5/10. Published 2025-11-29.
- How severe is CVE-2025-53900?
- Medium severity. CVSS v3 base score is 6.5 out of 10.