What is CVE-2018-19453?

CVE-2018-19453 is a high-severity vulnerability in Kentico Xperience, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2019-04-10.

How severe is CVE-2018-19453?

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

Is CVE-2018-19453 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-2018-19453

Kentico CMS before 11.0.45 allows unrestricted upload of a file with a dangerous type.

Vulnerability class: Unrestricted File Upload

Published 2019-04-10 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.014 (71.8th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Kentico Xperience

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

blog.hivint.com/advisory-upload-malicious-file-in-kentico-cms-cve-2018-19453-36… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-19453?: CVE-2018-19453 is a high-severity vulnerability in Kentico Xperience, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2019-04-10.
How severe is CVE-2018-19453?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2018-19453 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.