# CVE-2019-25228: Kentico Xperience <= 12.0.47 Virtual Context Information Disclosure

> Attackers can leak sensitive virtual context URLs to external domains via the HTTP Referer header during user interactions.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 18 Dec 2025
- **Updated:** 27 Dec 2025
- **Also known as:** GHSA-29cc-hw6r-mr24

## What is CVE-2019-25228?

CVE-2019-25228 is a medium-severity vulnerability in Kentico Xperience, published on 18 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

An information disclosure vulnerability in Kentico Xperience allows attackers to leak virtual context URLs via the HTTP Referer header when users interact with third-party domains. Sensitive virtual context information can be exposed to external domains through page builder interactions and link/image loading.

Weakness: CWE-497 (Exposure of Sensitive System Information to an Unauthorized Control Sphere)

## Which versions are affected by CVE-2019-25228?

It affects 1 product.


Products: Kentico Xperience.

## How do I fix CVE-2019-25228?

No fix has been published for CVE-2019-25228 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-25228 being exploited?

There is no known exploitation of CVE-2019-25228 in the wild and no public exploit code.

## Other vulnerabilities in Kentico Xperience

- [CVE-2025-2746](https://insights.sbomify.com/CVE-2025-2746/): Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel (critical 9.8, exploited in the wild)
- [CVE-2025-2747](https://insights.sbomify.com/CVE-2025-2747/): Kentico Xperience CMS Authentication Bypass Using an Alternate Path or Channel (critical 9.8, exploited in the wild)
- [CVE-2019-10068](https://insights.sbomify.com/CVE-2019-10068/): Kentico Xperience Deserialization of Untrusted Data (critical 9.8, exploited in the wild)
- [CVE-2025-2749](https://insights.sbomify.com/CVE-2025-2749/): Kentico Xperience Path Traversal (high 7.2, exploited in the wild)
- [CVE-2017-17736](https://insights.sbomify.com/CVE-2017-17736/): Missing authorization in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-25228 and fix it if it is affected.

What it is: CVE-2019-25228 is a medium-severity vulnerability in Kentico Xperience, published on 18 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-25228 in the wild and no public exploit code.

Affected product: Kentico Xperience. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2019-25228/ (Markdown: https://insights.sbomify.com/CVE-2019-25228/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-25228
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-25228
- OSV: https://osv.dev/vulnerability/CVE-2019-25228

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-25228/
Summaries are generated and may contain mistakes; the official description above is the record.