# CVE-2021-27124: SQL injection in n/a

> An authenticated patient can exploit SQL injection in the search feature to dump database credentials.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Feb 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-94c9-25gc-jr8p

## What is CVE-2021-27124?

CVE-2021-27124 is a medium-severity SQL injection vulnerability in n/a, published on 18 Feb 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

SQL injection in the expertise parameter in search_result.php in Doctor Appointment System v1.0 allows an authenticated patient user to dump the database credentials via a SQL injection attack.

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

## Which versions are affected by CVE-2021-27124?

It affects 1 product.


Products: Doctor Appointment System Project Doctor Appointment System.

## How do I fix CVE-2021-27124?

No fix has been published for CVE-2021-27124 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-27124 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-27124 exists.

Public exploit code:

- Doctor Appointment System 1.0 - SQL Injection (nuclei): http/cves/2021/CVE-2021-27124.yaml

## Other vulnerabilities in n/a

- [CVE-2023-40945](https://insights.sbomify.com/CVE-2023-40945/): SQL injection in n/a (critical 9.8)
- [CVE-2023-39852](https://insights.sbomify.com/CVE-2023-39852/): SQL injection in n/a (critical 9.8)
- [CVE-2021-27314](https://insights.sbomify.com/CVE-2021-27314/): SQL injection in n/a (critical 9.8)
- [CVE-2021-27315](https://insights.sbomify.com/CVE-2021-27315/): SQL injection in n/a (high 7.5)
- [CVE-2021-27316](https://insights.sbomify.com/CVE-2021-27316/): SQL injection in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-27124 and fix it if it is affected.

What it is: CVE-2021-27124 is a medium-severity SQL injection vulnerability in n/a, published on 18 Feb 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-27124 exists.

Affected product: n/a. 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-2021-27124/ (Markdown: https://insights.sbomify.com/CVE-2021-27124/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-27124
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-27124
- OSV: https://osv.dev/vulnerability/CVE-2021-27124

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-27124/
Summaries are generated and may contain mistakes; the official description above is the record.