# CVE-2019-12102: Missing authorization in n/a

> Attackers can upload and access media files without authentication if media library permissions are not properly configured by administrators.

- **Severity:** Critical 9.1 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 May 2019
- **Updated:** 15 Nov 2024
- **Also known as:** GHSA-56jq-wf2p-g55v

## What is CVE-2019-12102?

CVE-2019-12102 is a critical missing authorization vulnerability in Kentico Xperience, published on 22 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Kentico 11 through 12 lets attackers upload and explore files without authentication via the cmsmodules/medialibrary/formcontrols/liveselectors/insertimageormedia/tabs_media.aspx URI. NOTE: The vendor disputes the report because the researcher did not configure the media library permissions correctly. The vendor states that by default all users can read/modify/upload files, and it’s up to the administrator to decide who should have access to the media library and set the permissions accordingly. See the vendor documentation in the references for more information

Weakness: CWE-732 (Incorrect Permission Assignment for Critical Resource)

## Which versions are affected by CVE-2019-12102?

It affects 1 product.


Products: Kentico Xperience.

## How do I fix CVE-2019-12102?

No fix has been published for CVE-2019-12102 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-12102 being exploited?

There is no known exploitation of CVE-2019-12102 in the wild and no public exploit code.

Public exploit code:

- https://github.com/Egi08/CVE-2019-12102-Scanner (github_poc): https://github.com/Egi08/CVE-2019-12102-Scanner

## 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-2019-12102 and fix it if it is affected.

What it is: CVE-2019-12102 is a critical missing authorization vulnerability in Kentico Xperience, published on 22 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-12102 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-2019-12102/ (Markdown: https://insights.sbomify.com/CVE-2019-12102/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-12102
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-12102
- OSV: https://osv.dev/vulnerability/CVE-2019-12102

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-12102/
Summaries are generated and may contain mistakes; the official description above is the record.