# CVE-2021-42580: SQL injection in n/a

> Attackers can exploit SQL injection and file upload flaws to achieve unauthenticated remote code execution on the Online Learning System.

- **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:** 15 Nov 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-93fj-478v-vmfw

## What is CVE-2021-42580?

CVE-2021-42580 is a critical SQL injection vulnerability in n/a, published on 15 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Sourcecodester Online Learning System 2.0 is vunlerable to sql injection authentication bypass in admin login file (/admin/login.php) and authenticated file upload in (Master.php) file , we can craft these two vunlerablities to get unauthenticated remote command execution.

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

## Which versions are affected by CVE-2021-42580?

It affects 1 product.


Products: Oretnom23 Online Learning System.

## How do I fix CVE-2021-42580?

No fix has been published for CVE-2021-42580 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-42580 being exploited?

There is no known exploitation of CVE-2021-42580 in the wild and no public exploit code.

Public exploit code:

- Online Learning System 2.0 - Remote Code Execution (RCE) (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2021-40596](https://insights.sbomify.com/CVE-2021-40596/): SQL injection in n/a (critical 9.8)
- [CVE-2024-1970](https://insights.sbomify.com/CVE-2024-1970/): SourceCodester Online Learning System V2 index.php cross site scripting (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-42580 and fix it if it is affected.

What it is: CVE-2021-42580 is a critical SQL injection vulnerability in n/a, published on 15 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-2021-42580 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-2021-42580/ (Markdown: https://insights.sbomify.com/CVE-2021-42580/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-42580
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-42580
- OSV: https://osv.dev/vulnerability/CVE-2021-42580

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-42580/
Summaries are generated and may contain mistakes; the official description above is the record.