# CVE-2024-45429: Cross-site scripting in Advanced Custom Fields

> An attacker with specific privileges can inject scripts into field labels, leading to script execution in other users' browsers.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A: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:** 4 Sep 2024
- **Updated:** 25 Mar 2025
- **Also known as:** GHSA-h827-7423-x2vc

## What is CVE-2024-45429?

CVE-2024-45429 is a medium-severity cross-site scripting vulnerability in WP Engine Advanced Custom Fields, published on 4 Sep 2024. 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

Cross-site scripting vulnerability exists in Advanced Custom Fields versions 6.3.5 and earlier and Advanced Custom Fields Pro versions 6.3.5 and earlier. If an attacker with the 'capability' setting privilege which is set in the product settings stores an arbitrary script in the field label, the script may be executed on the web browser of the logged-in user with the same privilege as the attacker's.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2024-45429?

It affects 1 product.


Products: Wpengine Advanced Custom Fields.

## How do I fix CVE-2024-45429?

No fix has been published for CVE-2024-45429 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-45429 being exploited?

There is no known exploitation of CVE-2024-45429 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-45429 and fix it if it is affected.

What it is: CVE-2024-45429 is a medium-severity cross-site scripting vulnerability in WP Engine Advanced Custom Fields, published on 4 Sep 2024. 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-2024-45429 in the wild and no public exploit code.

Affected product: WP Engine 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-2024-45429/ (Markdown: https://insights.sbomify.com/CVE-2024-45429/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-45429
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-45429
- OSV: https://osv.dev/vulnerability/CVE-2024-45429

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-45429/
Summaries are generated and may contain mistakes; the official description above is the record.