# CVE-2023-28787: WordPress Quiz And Survey Master plugin <= 8.1.4 - Unauthenticated SQL Injection vulnerability

> Unauthenticated attackers can execute arbitrary SQL commands via the Quiz And Survey Master plugin, potentially accessing or modifying database content.

- **Severity:** Critical 9.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/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:** 26 Mar 2024
- **Updated:** 28 Apr 2026
- **Also known as:** GHSA-52gr-wg7p-r98m

## What is CVE-2023-28787?

CVE-2023-28787 is a critical SQL injection vulnerability in ExpressTech Quiz And Survey Master, published on 26 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in ExpressTech Quiz And Survey Master.This issue affects Quiz And Survey Master: from n/a through 8.1.4.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2023-28787?


## How do I fix CVE-2023-28787?

No fix has been published for CVE-2023-28787 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-28787 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-28787 exists.

Public exploit code:

- Quiz and Survey Master <= 8.1.4 - SQL Injection (nuclei): http/cves/2023/CVE-2023-28787.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-28787 and fix it if it is affected.

What it is: CVE-2023-28787 is a critical SQL injection vulnerability in ExpressTech Quiz And Survey Master, published on 26 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-28787 exists.

Affected product: ExpressTech Quiz And Survey Master. 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-2023-28787/ (Markdown: https://insights.sbomify.com/CVE-2023-28787/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-28787
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-28787
- OSV: https://osv.dev/vulnerability/CVE-2023-28787

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-28787/
Summaries are generated and may contain mistakes; the official description above is the record.