# CVE-2021-24247: Contact Form Check Tester <= 1.0.2 - Broken Access Control to Cross-Site Scripting (XSS)

> A stored XSS vulnerability in the Contact Form Check Tester WordPress plugin allows any registered user to inject scripts, potentially leading to privilege escalation.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 5 May 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-8p46-3hgg-m4mc

## What is CVE-2021-24247?

CVE-2021-24247 is a medium-severity cross-site scripting vulnerability in MooveAgency Contact Form Check Tester, published on 5 May 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

The Contact Form Check Tester WordPress plugin through 1.0.2 settings are visible to all registered users in the dashboard and are lacking any sanitisation. As a result, any registered user, such as subscriber, can leave an XSS payload in the plugin settings, which will be triggered by any user visiting them, and could allow for privilege escalation. The vendor decided to close the plugin.

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

## Which versions are affected by CVE-2021-24247?

It affects 1 product.


Products: Mooveagency Contact Form Check Tester.

## How do I fix CVE-2021-24247?

No fix has been published for CVE-2021-24247 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24247 being exploited?

There is no known exploitation of CVE-2021-24247 in the wild and no public exploit code.

Public exploit code:

- WordPress Plugin Contact Form Check Tester 1.0.2 - Broken Access Control (exploitdb)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24247 and fix it if it is affected.

What it is: CVE-2021-24247 is a medium-severity cross-site scripting vulnerability in MooveAgency Contact Form Check Tester, published on 5 May 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-24247 in the wild and no public exploit code.

Affected product: MooveAgency Contact Form Check Tester. 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-2021-24247/ (Markdown: https://insights.sbomify.com/CVE-2021-24247/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24247
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24247
- OSV: https://osv.dev/vulnerability/CVE-2021-24247

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24247/
Summaries are generated and may contain mistakes; the official description above is the record.