# CVE-2021-47984: WordPress Plugin WP24 Domain Check 1.6.2 Stored XSS

> Authenticated attackers can inject malicious scripts via the domain check settings, leading to code execution in administrator browsers.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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:** 8 Jun 2026
- **Updated:** 8 Jun 2026
- **Also known as:** GHSA-2gq4-h2qw-hmmh

## What is CVE-2021-47984?

CVE-2021-47984 is a medium-severity cross-site scripting vulnerability in WP24 Domain Check, published on 8 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

WordPress Plugin WP24 Domain Check 1.6.2 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by submitting crafted input to the fieldnameDomain parameter. Attackers can inject JavaScript payloads through the plugin settings form at options.php that execute in the browsers of administrators viewing the settings page.

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

## Which versions are affected by CVE-2021-47984?


## How do I fix CVE-2021-47984?

No fix has been published for CVE-2021-47984 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-47984 being exploited?

There is no known exploitation of CVE-2021-47984 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-47984 and fix it if it is affected.

What it is: CVE-2021-47984 is a medium-severity cross-site scripting vulnerability in WP24 Domain Check, published on 8 Jun 2026. 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-2021-47984 in the wild and no public exploit code.

Affected product: WP24 Domain Check. 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-2021-47984/ (Markdown: https://insights.sbomify.com/CVE-2021-47984/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-47984
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-47984
- OSV: https://osv.dev/vulnerability/CVE-2021-47984

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-47984/
Summaries are generated and may contain mistakes; the official description above is the record.