# CVE-2022-4213: Chained Quiz <= 1.3.2.2 - Reflected Cross-Site Scripting via dn

> Unauthenticated attackers can inject arbitrary web scripts via the 'dn' parameter, executing code in victim browsers if they click a malicious link.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/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:** 2 Dec 2022
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-px6r-rj6g-428q

## What is CVE-2022-4213?

CVE-2022-4213 is a medium-severity cross-site scripting vulnerability in prasunsen Chained Quiz, published on 2 Dec 2022. 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 Chained Quiz plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'dn' parameter on the 'chainedquiz_list' page in versions up to, and including, 1.3.2.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

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

## Which versions are affected by CVE-2022-4213?

It affects 1 product.


Products: Kibokolabs Chained Quiz.

## How do I fix CVE-2022-4213?

No fix has been published for CVE-2022-4213 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-4213 being exploited?

There is no known exploitation of CVE-2022-4213 in the wild and no public exploit code.

## Other vulnerabilities in prasunsen Chained Quiz

- [CVE-2018-14502](https://insights.sbomify.com/CVE-2018-14502/): SQL injection in n/a (critical 9.8)
- [CVE-2022-4208](https://insights.sbomify.com/CVE-2022-4208/): Chained Quiz <= 1.3.2 - Reflected Cross-Site Scripting via datef (medium 6.1)
- [CVE-2022-4209](https://insights.sbomify.com/CVE-2022-4209/): Chained Quiz <= 1.3.2 - Reflected Cross-Site Scripting via pointsf (medium 6.1)
- [CVE-2022-4210](https://insights.sbomify.com/CVE-2022-4210/): Chained Quiz <= 1.3.2 - Reflected Cross-Site Scripting via dnf (medium 6.1)
- [CVE-2022-4211](https://insights.sbomify.com/CVE-2022-4211/): Chained Quiz <= 1.3.2 - Reflected Cross-Site Scripting via emailf (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-4213 and fix it if it is affected.

What it is: CVE-2022-4213 is a medium-severity cross-site scripting vulnerability in prasunsen Chained Quiz, published on 2 Dec 2022. 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-2022-4213 in the wild and no public exploit code.

Affected product: prasunsen Chained Quiz. 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-2022-4213/ (Markdown: https://insights.sbomify.com/CVE-2022-4213/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-4213
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4213
- OSV: https://osv.dev/vulnerability/CVE-2022-4213

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-4213/
Summaries are generated and may contain mistakes; the official description above is the record.