# CVE-2023-47545: WordPress Forms for Mailchimp by Optin Cat Plugin <= 2.5.4 is vulnerable to Cross Site Scripting (XSS)

> Authenticated editors can inject malicious scripts into the WordPress Forms for Mailchimp plugin, potentially compromising user sessions.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 14 Nov 2023
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-7hq6-r3pg-vcqw

## What is CVE-2023-47545?

CVE-2023-47545 is a medium-severity cross-site scripting vulnerability in Fatcat Apps Forms for Mailchimp by Optin Cat – Grow Your MailChimp List, published on 14 Nov 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Auth. (editor+) Stored Cross-Site Scripting (XSS) vulnerability in Fatcat Apps Forms for Mailchimp by Optin Cat – Grow Your MailChimp List plugin <= 2.5.4 versions.

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

## Which versions are affected by CVE-2023-47545?

It affects 1 product.


Products: Fatcatapps Forms for Mailchimp by Optin Cat.

## How do I fix CVE-2023-47545?

No fix has been published for CVE-2023-47545 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-47545 being exploited?

There is no known exploitation of CVE-2023-47545 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-47545 and fix it if it is affected.

What it is: CVE-2023-47545 is a medium-severity cross-site scripting vulnerability in Fatcat Apps Forms for Mailchimp by Optin Cat – Grow Your MailChimp List, published on 14 Nov 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-47545 in the wild and no public exploit code.

Affected product: Fatcat Apps Forms for Mailchimp by Optin Cat – Grow Your MailChimp List. 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-2023-47545/ (Markdown: https://insights.sbomify.com/CVE-2023-47545/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-47545
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-47545
- OSV: https://osv.dev/vulnerability/CVE-2023-47545

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-47545/
Summaries are generated and may contain mistakes; the official description above is the record.