# CVE-2022-27593: QNAP Photo Station Externally Controlled Reference

> Attackers can exploit an externally controlled reference vulnerability in QNAP Photo Station to modify system files, potentially leading to ransomware deployment.

- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H`)
- **Exploited in the wild:** Yes, since 8 Sep 2022 (CISA KEV), used in ransomware
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Sep 2022
- **Updated:** 21 Oct 2025
- **Also known as:** GHSA-c84w-pfmp-9cxg

## What is CVE-2022-27593?

CVE-2022-27593 is a critical server-side request forgery vulnerability in QNAP Systems Inc. Photo Station, published on 8 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An externally controlled reference to a resource vulnerability has been reported to affect QNAP NAS running Photo Station. If exploited, This could allow an attacker to modify system files. We have already fixed the vulnerability in the following versions: QTS 5.0.1: Photo Station 6.1.2 and later QTS 5.0.0/4.5.x: Photo Station 6.0.22 and later QTS 4.3.6: Photo Station 5.7.18 and later QTS 4.3.3: Photo Station 5.4.15 and later QTS 4.2.6: Photo Station 5.2.14 and later

Weakness: CWE-610 (Externally Controlled Reference to a Resource in Another Sphere)

## Which versions are affected by CVE-2022-27593?

It affects 1 product.


Products: Qnap Photo Station.

## How do I fix CVE-2022-27593?

No fix has been published for CVE-2022-27593 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 29 Sep 2022.

## Is CVE-2022-27593 being exploited?

Yes. Attackers have exploited CVE-2022-27593 in the wild since at least 8 Sep 2022, including in ransomware campaigns.

Public exploit code:

- QNAP QTS Photo Station External Reference - Local File Inclusion (nuclei): http/cves/2022/CVE-2022-27593.yaml

## Other vulnerabilities in QNAP Systems Inc. Photo Station

- [CVE-2019-7192](https://insights.sbomify.com/CVE-2019-7192/): QNAP Photo Station Improper Access Control (critical 9.8, exploited in the wild)
- [CVE-2019-7194](https://insights.sbomify.com/CVE-2019-7194/): QNAP Photo Station Path Traversal (critical 9.8, exploited in the wild)
- [CVE-2019-7195](https://insights.sbomify.com/CVE-2019-7195/): QNAP Photo Station Path Traversal (critical 9.8, exploited in the wild)
- [CVE-2017-20210](https://insights.sbomify.com/CVE-2017-20210/): Photo Station (critical 9.8)
- [CVE-2021-34354](https://insights.sbomify.com/CVE-2021-34354/): Stored Cross-site Scripting Vulnerability in Photo Station (high 7.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-27593 and fix it if it is affected.

What it is: CVE-2022-27593 is a critical server-side request forgery vulnerability in QNAP Systems Inc. Photo Station, published on 8 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2022-27593 in the wild since at least 8 Sep 2022, including in ransomware campaigns.

Affected product: QNAP Systems Inc. Photo Station. 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-2022-27593/ (Markdown: https://insights.sbomify.com/CVE-2022-27593/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-27593
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-27593
- OSV: https://osv.dev/vulnerability/CVE-2022-27593

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-27593/
Summaries are generated and may contain mistakes; the official description above is the record.