CVE-2019-25229: An unrestricted file upload vulnerability in Kentico Xperience allows authenticated users with 'Read data' per

Q: How do I fix CVE-2019-25229?

xperience: upgrade to newer than 12.0.29. Exact commands for each OS are on this page.

Q: Is CVE-2019-25229 being exploited?

CVE-2019-25229 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-25229 affect?

CVE-2019-25229 affects xperience. Severity is high (CVSS 8.8). 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 pote

Routine

HIGH 8.8UPGRADE

CVE-2019-25229 is a high-severity flaw (CVSS 8.8) affecting xperience. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 potentially malicious files to the system, enabling unauthorized file uploads.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 73%)
CISA exploited list	No
Weakness	CWE-434
Published	2025-12-18
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: kentico

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-18 20:15 UTCPublished CVE record published
2026-06-17 02:31 UTCUpdated Record last modified

kentico xperience UPGRADE

Affected: <= 12.0.29

Fixed in: newer than 12.0.29

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy xperience || rpm -q xperience || xperience --version

2. UPGRADE to newer than 12.0.29 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade xperience

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade xperience

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-25229?

xperience: upgrade to newer than 12.0.29. Exact commands for each OS are on this page.

Is CVE-2019-25229 being exploited?

CVE-2019-25229 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-25229 affect?

CVE-2019-25229 affects xperience. Severity is high (CVSS 8.8). 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 pote

How urgent is CVE-2019-25229?

Priority 38/100. High severity

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References

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