# CVE-2021-43361: MedData HBYS 1.0 Remote SQL Injection Vulnerability

> Remote attackers can execute arbitrary SQL commands in MedData HBYS, potentially reading or modifying sensitive hospital data.

- **Severity:** Critical 9.9 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/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:** 29 Sep 2022
- **Updated:** 20 May 2025
- **Also known as:** GHSA-qq4p-5ffp-5c3r

## What is CVE-2021-43361?

CVE-2021-43361 is a critical SQL injection vulnerability in MedData HBYS, published on 29 Sep 2022. 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 MedData HBYS allows SQL Injection.This issue affects HBYS: from unspecified before 1.1.

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

## Which versions are affected by CVE-2021-43361?

It affects 1 product.


Products: Meddata Hbys.

## How do I fix CVE-2021-43361?

No fix has been published for CVE-2021-43361 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-43361 being exploited?

There is no known exploitation of CVE-2021-43361 in the wild and no public exploit code.

## Other vulnerabilities in MedData HBYS

- [CVE-2021-43362](https://insights.sbomify.com/CVE-2021-43362/): MedData HBYS 1.0 Remote SQL Injection Vulnerability (critical 9.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-43361 and fix it if it is affected.

What it is: CVE-2021-43361 is a critical SQL injection vulnerability in MedData HBYS, published on 29 Sep 2022. 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-2021-43361 in the wild and no public exploit code.

Affected product: MedData HBYS. 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-2021-43361/ (Markdown: https://insights.sbomify.com/CVE-2021-43361/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-43361
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-43361
- OSV: https://osv.dev/vulnerability/CVE-2021-43361

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-43361/
Summaries are generated and may contain mistakes; the official description above is the record.