# CVE-2024-3562: Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) PHP Code Injection via Loop Custom Field

> Authenticated contributors can execute arbitrary PHP code on the server via unsanitized input in the Loop custom field.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Jun 2024
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-896r-w4m5-qqw8

## What is CVE-2024-3562?

CVE-2024-3562 is a high-severity code injection vulnerability in mgibbs189 Custom Field Suite, published on 20 Jun 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Custom Field Suite plugin for WordPress is vulnerable to PHP Code Injection in all versions up to, and including, 2.6.7 via the Loop custom field. This is due to insufficient sanitization of input prior to being used in a call to the eval() function. This makes it possible for authenticated attackers, with contributor-level access and above, to execute arbitrary PHP code on the server.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-95 (Improper Neutralization of Directives in Dynamically Evaluated Code)

## Which versions are affected by CVE-2024-3562?

It affects 1 product.


Products: Custom Field Suite Project Custom Field Suite.

## How do I fix CVE-2024-3562?

No fix has been published for CVE-2024-3562 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-3562 being exploited?

There is no known exploitation of CVE-2024-3562 in the wild and no public exploit code.

## Other vulnerabilities in mgibbs189 Custom Field Suite

- [CVE-2024-3561](https://insights.sbomify.com/CVE-2024-3561/): Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) SQL Injection via Term Custom Field (high 8.8)
- [CVE-2024-3558](https://insights.sbomify.com/CVE-2024-3558/): Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via cfs[post_title] (medium 6.4)
- [CVE-2024-3559](https://insights.sbomify.com/CVE-2024-3559/): Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via cfs[post_content] (medium 6.4)
- [CVE-2023-32515](https://insights.sbomify.com/CVE-2023-32515/): WordPress Custom Field Suite Plugin <= 2.6.2.1 is vulnerable to Cross Site Scripting (XSS) (medium 5.9)
- [CVE-2019-11871](https://insights.sbomify.com/CVE-2019-11871/): Cross-site scripting in n/a (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-3562 and fix it if it is affected.

What it is: CVE-2024-3562 is a high-severity code injection vulnerability in mgibbs189 Custom Field Suite, published on 20 Jun 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-3562 in the wild and no public exploit code.

Affected product: mgibbs189 Custom Field Suite. 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-2024-3562/ (Markdown: https://insights.sbomify.com/CVE-2024-3562/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-3562
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-3562
- OSV: https://osv.dev/vulnerability/CVE-2024-3562

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-3562/
Summaries are generated and may contain mistakes; the official description above is the record.