# CVE-2023-0291: Quiz And Survey Master <= 8.0.8 - Unauthenticated Arbitrary Media Deletion

> Unauthenticated attackers can delete arbitrary media files due to a missing capability check in the Quiz And Survey Master WordPress plugin.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jun 2023
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-qfx5-pmrr-ggvv

## What is CVE-2023-0291?

CVE-2023-0291 is a high-severity missing authorization vulnerability in expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker, published on 9 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Quiz And Survey Master for WordPress is vulnerable to authorization bypass due to a missing capability check on the function associated with the qsm_remove_file_fd_question AJAX action in versions up to, and including, 8.0.8. This makes it possible for unauthenticated attackers to delete arbitrary media files.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2023-0291?

It affects 1 product.


Products: Expresstech Quiz and Survey Master.

## How do I fix CVE-2023-0291?

No fix has been published for CVE-2023-0291 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-0291 being exploited?

There is no known exploitation of CVE-2023-0291 in the wild and no public exploit code.

## Other vulnerabilities in expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker

- [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-2023-0291 and fix it if it is affected.

What it is: CVE-2023-0291 is a high-severity missing authorization vulnerability in expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker, published on 9 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-0291 in the wild and no public exploit code.

Affected product: expresstech Quiz and Survey Master (QSM) – Easy Quiz and Survey Maker. 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-2023-0291/ (Markdown: https://insights.sbomify.com/CVE-2023-0291/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-0291
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-0291
- OSV: https://osv.dev/vulnerability/CVE-2023-0291

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-0291/
Summaries are generated and may contain mistakes; the official description above is the record.