# CVE-2021-34647: Ninja Forms <= 3.5.7 Sensitive Information Disclosure

> Authenticated attackers can export all form submission data, including PII, due to missing authorization checks in the Ninja Forms WordPress plugin.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **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:** 22 Sep 2021
- **Updated:** 31 Mar 2025
- **Also known as:** GHSA-jgh8-23p9-p5x7

## What is CVE-2021-34647?

CVE-2021-34647 is a medium-severity missing authorization vulnerability in Ninjaforms Ninja Forms, published on 22 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The Ninja Forms WordPress plugin is vulnerable to sensitive information disclosure via the bulk_export_submissions function found in the ~/includes/Routes/Submissions.php file, in versions up to and including 3.5.7. This allows authenticated attackers to export all Ninja Forms submissions data via the /ninja-forms-submissions/export REST API which can include personally identifiable information.

Weakness: CWE-862 (Missing Authorization), CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2021-34647?

It affects 1 product.


Products: Ninjaforms Ninja Forms.

## How do I fix CVE-2021-34647?

No fix has been published for CVE-2021-34647 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-34647 being exploited?

There is no known exploitation of CVE-2021-34647 in the wild and no public exploit code.

## Other vulnerabilities in Ninjaforms Ninja Forms

- [CVE-2025-9083](https://insights.sbomify.com/CVE-2025-9083/): Ninja-forms < 3.11.1 - Unauthenticated PHP Objection (critical 9.8)
- [CVE-2016-1209](https://insights.sbomify.com/CVE-2016-1209/): Deserialization in n/a (critical 9.8)
- [CVE-2018-20981](https://insights.sbomify.com/CVE-2018-20981/): Information disclosure in n/a (critical 9.1)
- [CVE-2024-25572](https://insights.sbomify.com/CVE-2024-25572/): Cross-site request forgery in Ninja Forms (high 8.8)
- [CVE-2021-24163](https://insights.sbomify.com/CVE-2021-24163/): Ninja Forms < 3.4.34 - Authenticated SendWP Plugin Installation and Client Secret Key Disclosure (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-34647 and fix it if it is affected.

What it is: CVE-2021-34647 is a medium-severity missing authorization vulnerability in Ninjaforms Ninja Forms, published on 22 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-34647 in the wild and no public exploit code.

Affected product: Ninjaforms Ninja Forms. 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-2021-34647/ (Markdown: https://insights.sbomify.com/CVE-2021-34647/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-34647
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-34647
- OSV: https://osv.dev/vulnerability/CVE-2021-34647

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-34647/
Summaries are generated and may contain mistakes; the official description above is the record.