# CVE-2022-2594: Advanced Custom Fields 5.0-5.12.2 - Unauthenticated File Upload

> Unauthenticated attackers can upload allowed files via frontend forms in Advanced Custom Fields, requiring a specific form configuration.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **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:** 22 Aug 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-m8hq-2c8m-w6cm

## What is CVE-2022-2594?

CVE-2022-2594 is a high-severity vulnerability in TODO Advanced Custom Fields, published on 22 Aug 2022. 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

The Advanced Custom Fields WordPress plugin before 5.12.3, Advanced Custom Fields Pro WordPress plugin before 5.12.3 allows unauthenticated users to upload files allowed in a default WP configuration (so PHP is not possible) if there is a frontend form available. This vulnerability was introduced in the 5.0 rewrite and did not exist prior to that release.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2022-2594?

It affects 1 product.


Products: Advancedcustomfields Advanced Custom Fields.

## How do I fix CVE-2022-2594?

No fix has been published for CVE-2022-2594 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-2594 being exploited?

There is no known exploitation of CVE-2022-2594 in the wild and no public exploit code.

## Other vulnerabilities in TODO Advanced Custom Fields

- [CVE-2023-1196](https://insights.sbomify.com/CVE-2023-1196/): Advanced Custom Fields - Contributor+ PHP Object Injection (high 8.8)
- [CVE-2024-4565](https://insights.sbomify.com/CVE-2024-4565/): Advanced Custom Fields < 6.3 - Contributor+ Custom Field Access (high 7.5)
- [CVE-2021-20865](https://insights.sbomify.com/CVE-2021-20865/): Missing authorization in Advanced Custom Fields and Advanced Custom Fields Pro (high 7.5)
- [CVE-2023-30777](https://insights.sbomify.com/CVE-2023-30777/): WordPress Advanced Custom Fields / Advanced Custom Fields PRO plugins <= 6.1.5 vulnerable to Cross Site Scripting (XSS) (high 7.1)
- [CVE-2024-9529](https://insights.sbomify.com/CVE-2024-9529/): Secure Custom Fields < 6.3.6.3 - Admin+ Remote Code Execution (medium 6.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-2594 and fix it if it is affected.

What it is: CVE-2022-2594 is a high-severity vulnerability in TODO Advanced Custom Fields, published on 22 Aug 2022. 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-2022-2594 in the wild and no public exploit code.

Affected product: TODO Advanced Custom Fields. 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-2022-2594/ (Markdown: https://insights.sbomify.com/CVE-2022-2594/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-2594
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-2594
- OSV: https://osv.dev/vulnerability/CVE-2022-2594

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-2594/
Summaries are generated and may contain mistakes; the official description above is the record.