What is CVE-2019-25229?

CVE-2019-25229 is a high-severity vulnerability in Kentico Xperience, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2025-12-18.

How severe is CVE-2019-25229?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Kentico Xperience

CVE-2019-25229

An unrestricted file upload vulnerability in Kentico Xperience allows authenticated users with 'Read data' permissions to upload arbitrary file types via MVC form file uploader components. Attackers can manipulate file names and upload pot…

Vulnerability class: Unrestricted File Upload

EPSS: 0.000 (13.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Kentico Xperience — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

Kentico DevNet Hotfixes (vendor-advisory, patch)
VulnCheck Advisory: Kentico Xperience <= 12.0.29 MVC Forms Unrestricted File Upload (third-party-advisory)

Frequently asked questions

What is CVE-2019-25229?: CVE-2019-25229 is a high-severity vulnerability in Kentico Xperience, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2025-12-18.
How severe is CVE-2019-25229?: High severity. CVSS v3 base score is 8.8 out of 10.