# CVE-2021-24368: Quiz And Survey Master < 7.1.18 - Reflected Cross-Site Scripting (XSS)

> Reflected XSS in Quiz And Survey Master plugin allows attackers to escalate privileges by tricking admins into clicking malicious links.

- **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:** 20 Jun 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-5p8c-g4f9-2fg8

## What is CVE-2021-24368?

CVE-2021-24368 is a medium-severity cross-site scripting vulnerability in ExpressTech Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress, published on 20 Jun 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

The Quiz And Survey Master – Best Quiz, Exam and Survey Plugin WordPress plugin before 7.1.18 did not sanitise or escape its result_id parameter when displaying an existing quiz result page, leading to a reflected Cross-Site Scripting issue. This could allow for privilege escalation by inducing a logged in admin to open a malicious link

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

## Which versions are affected by CVE-2021-24368?

It affects 1 product.


Products: Expresstech Quiz and Survey Master.

## How do I fix CVE-2021-24368?

No fix has been published for CVE-2021-24368 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24368 being exploited?

There is no known exploitation of CVE-2021-24368 in the wild and no public exploit code.

## Other vulnerabilities in ExpressTech Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress

- [CVE-2020-35949](https://insights.sbomify.com/CVE-2020-35949/): File upload in n/a (critical 10.0)
- [CVE-2024-3592](https://insights.sbomify.com/CVE-2024-3592/): SQL injection in Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker (critical 9.9)
- [CVE-2020-35951](https://insights.sbomify.com/CVE-2020-35951/): Missing authorization in n/a (critical 9.9)
- [CVE-2024-5606](https://insights.sbomify.com/CVE-2024-5606/): Quiz And Survey Master < 9.0.2 - Contributor+ SQLi (high 8.8)
- [CVE-2022-0180](https://insights.sbomify.com/CVE-2022-0180/): Cross-site request forgery in Quiz And Survey Master (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24368 and fix it if it is affected.

What it is: CVE-2021-24368 is a medium-severity cross-site scripting vulnerability in ExpressTech Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress, published on 20 Jun 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-2021-24368 in the wild and no public exploit code.

Affected product: ExpressTech Quiz And Survey Master – Best Quiz, Exam and Survey Plugin for WordPress. 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-2021-24368/ (Markdown: https://insights.sbomify.com/CVE-2021-24368/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24368
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24368
- OSV: https://osv.dev/vulnerability/CVE-2021-24368

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24368/
Summaries are generated and may contain mistakes; the official description above is the record.