What is CVE-2019-19493?

CVE-2019-19493 is a medium-severity vulnerability in Kentico Xperience, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.4/10. Published 2019-12-02.

How severe is CVE-2019-19493?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2019-19493 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Kentico Xperience

CVE-2019-19493

Kentico before 12.0.50 allows file uploads in which the Content-Type header is inconsistent with the file extension, leading to XSS.

Vulnerability class: Unrestricted File Upload

Published 2019-12-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.020 (80.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Kentico Xperience

Weakness classification (CWE)

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

devnet.kentico.com/download/hotfixes (Patch, Vendor Advisory)
packetstormsecurity.com/files/159525/Kentico-CMS-9.0-12.0.49-Cross-Site-Scripti… (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2019-19493?: CVE-2019-19493 is a medium-severity vulnerability in Kentico Xperience, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 5.4/10. Published 2019-12-02.
How severe is CVE-2019-19493?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2019-19493 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.