# CVE-2021-24161: Responsive Menu < 4.0.4 - CSRF to Arbitrary File Upload

> Attackers can trick administrators into uploading malicious files via CSRF, leading to remote code execution on WordPress sites using the Responsive Menu plugin.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **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:** 5 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-2jmf-ff5x-92qw

## What is CVE-2021-24161?

CVE-2021-24161 is a high-severity vulnerability in ExpressTech Responsive Menu Pro, published on 5 Apr 2021. 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

In the Reponsive Menu (free and Pro) WordPress plugins before 4.0.4, attackers could craft a request and trick an administrator into uploading a zip archive containing malicious PHP files. The attacker could then access those files to achieve remote code execution and further infect the targeted site.

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

## Which versions are affected by CVE-2021-24161?

It affects 1 product.


Products: Expresstech Responsive Menu.

## How do I fix CVE-2021-24161?

No fix has been published for CVE-2021-24161 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24161 being exploited?

There is no known exploitation of CVE-2021-24161 in the wild and no public exploit code.

## Other vulnerabilities in ExpressTech Responsive Menu Pro

- [CVE-2021-24160](https://insights.sbomify.com/CVE-2021-24160/): Responsive Menu 4.0.0 - 4.0.3 - Authenticated Arbitrary File Upload (high 8.8)
- [CVE-2021-24162](https://insights.sbomify.com/CVE-2021-24162/): Responsive Menu < 4.0.4 - CSRF to Settings Update (high 8.8)
- [CVE-2017-18513](https://insights.sbomify.com/CVE-2017-18513/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2022-25602](https://insights.sbomify.com/CVE-2022-25602/): File upload in Responsive Menu (WordPress plugin) (high 8.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24161 and fix it if it is affected.

What it is: CVE-2021-24161 is a high-severity vulnerability in ExpressTech Responsive Menu Pro, published on 5 Apr 2021. 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-2021-24161 in the wild and no public exploit code.

Affected product: ExpressTech Responsive Menu Pro. 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-2021-24161/ (Markdown: https://insights.sbomify.com/CVE-2021-24161/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24161
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24161
- OSV: https://osv.dev/vulnerability/CVE-2021-24161

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24161/
Summaries are generated and may contain mistakes; the official description above is the record.