# CVE-2021-43140: SQL injection in n/a

> An attacker can exploit SQL injection in the login mechanism of the Simple Subscription Website to access or modify database information.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Nov 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-r3c8-67q5-2xw8

## What is CVE-2021-43140?

CVE-2021-43140 is a critical SQL injection vulnerability in n/a, published on 3 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

SQL Injection vulnerability exists in Sourcecodester. Simple Subscription Website 1.0. via the login.

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

## Which versions are affected by CVE-2021-43140?

It affects 1 product.


Products: Oretnom23 Simple Subscription Website.

## How do I fix CVE-2021-43140?

No fix has been published for CVE-2021-43140 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-43140 being exploited?

There is no known exploitation of CVE-2021-43140 in the wild and no public exploit code.

Public exploit code:

- Simple Subscription Website 1.0 - SQLi Authentication Bypass (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2022-26283](https://insights.sbomify.com/CVE-2022-26283/): SQL injection in n/a (critical 9.8)
- [CVE-2024-4093](https://insights.sbomify.com/CVE-2024-4093/): SourceCodester Simple Subscription Website view_application.php sql injection (medium 6.3)
- [CVE-2024-3014](https://insights.sbomify.com/CVE-2024-3014/): SourceCodester Simple Subscription Website Actions.php sql injection (medium 6.3)
- [CVE-2024-3015](https://insights.sbomify.com/CVE-2024-3015/): SourceCodester Simple Subscription Website manage_plan.php sql injection (medium 6.3)
- [CVE-2024-3042](https://insights.sbomify.com/CVE-2024-3042/): SourceCodester Simple Subscription Website manage_user.php sql injection (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-43140 and fix it if it is affected.

What it is: CVE-2021-43140 is a critical SQL injection vulnerability in n/a, published on 3 Nov 2021. 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-2021-43140 in the wild and no public exploit code.

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-2021-43140/ (Markdown: https://insights.sbomify.com/CVE-2021-43140/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-43140
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-43140
- OSV: https://osv.dev/vulnerability/CVE-2021-43140

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-43140/
Summaries are generated and may contain mistakes; the official description above is the record.