# CVE-2023-5383: Funnelforms Free <= 3.4 - Cross-Site Request Forgery to Arbitrary Post Duplication

> Unauthenticated attackers can trick administrators into duplicating arbitrary posts via CSRF in the Funnelforms Free WordPress plugin.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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:** 22 Nov 2023
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-gcxx-87qq-3r7v

## What is CVE-2023-5383?

CVE-2023-5383 is a medium-severity vulnerability in Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor – Funnelforms Free, published on 22 Nov 2023. 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 Funnelforms Free plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.4. This is due to missing or incorrect nonce validation on the fnsf_copy_posts function. This makes it possible for unauthenticated attackers to create copies of arbitrary posts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. CVE-2023-5990 appears to be a duplicate of this issue.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2023-5383?

It affects 1 product.


Products: Funnelforms Funnelforms.

## How do I fix CVE-2023-5383?

No fix has been published for CVE-2023-5383 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-5383 being exploited?

There is no known exploitation of CVE-2023-5383 in the wild and no public exploit code.

## Other vulnerabilities in Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor – Funnelforms Free

- [CVE-2023-5382](https://insights.sbomify.com/CVE-2023-5382/): Funnelforms Free <= 3.4 - Cross-Site Request Forgery to Arbitrary Post Deletion (medium 6.5)
- [CVE-2023-5386](https://insights.sbomify.com/CVE-2023-5386/): Funnelforms Free <= 3.4 - Missing Authorization to Arbitrary Post Deletion (medium 6.5)
- [CVE-2023-4950](https://insights.sbomify.com/CVE-2023-4950/): Funnelforms Free < 3.4 Unauthenticated Stored Cross-Site Scripting (medium 6.1)
- [CVE-2023-5385](https://insights.sbomify.com/CVE-2023-5385/): Funnelforms Free <= 3.4 - Missing Authorization to Arbitrary Post Duplication (medium 4.3)
- [CVE-2023-5387](https://insights.sbomify.com/CVE-2023-5387/): Funnelforms Free <= 3.4 - Missing Authorization to Enable/Disable Dark Mode (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-5383 and fix it if it is affected.

What it is: CVE-2023-5383 is a medium-severity vulnerability in Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor – Funnelforms Free, published on 22 Nov 2023. 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-2023-5383 in the wild and no public exploit code.

Affected product: Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor – Funnelforms Free. 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-2023-5383/ (Markdown: https://insights.sbomify.com/CVE-2023-5383/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-5383
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-5383
- OSV: https://osv.dev/vulnerability/CVE-2023-5383

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-5383/
Summaries are generated and may contain mistakes; the official description above is the record.