# CVE-2021-24183: Tutor LMS < 1.8.3 - SQL Injection via tutor_quiz_builder_get_question_form

> Students can exploit a SQL injection vulnerability in the Tutor LMS WordPress plugin to read or modify database contents.

- **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:** 5 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-vfx3-5xwg-q5jm

## What is CVE-2021-24183?

CVE-2021-24183 is a medium-severity SQL injection vulnerability in Unknown Tutor LMS – eLearning and online course solution, published on 5 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

The tutor_quiz_builder_get_question_form AJAX action from the Tutor LMS – eLearning and online course solution WordPress plugin before 1.8.3 was vulnerable to UNION based SQL injection that could be exploited by students.

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

## Which versions are affected by CVE-2021-24183?

It affects 1 product.


Products: Themeum Tutor Lms.

## How do I fix CVE-2021-24183?

No fix has been published for CVE-2021-24183 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-24183 being exploited?

There is no known exploitation of CVE-2021-24183 in the wild and no public exploit code.

## Other vulnerabilities in Unknown Tutor LMS – eLearning and online course solution

- [CVE-2024-4223](https://insights.sbomify.com/CVE-2024-4223/): Tutor LMS <= 2.7.0 - Missing Authorization (critical 9.8)
- [CVE-2024-4318](https://insights.sbomify.com/CVE-2024-4318/): Tutor LMS <= 2.7.0 - Authenticated (Instructor+) SQL Injection (high 8.8)
- [CVE-2024-4351](https://insights.sbomify.com/CVE-2024-4351/): Tutor LMS Pro <= 2.7.0 - Missing Authorization to Privilege Escalation (high 8.8)
- [CVE-2024-4352](https://insights.sbomify.com/CVE-2024-4352/): Tutor LMS Pro <= 2.7.0 - Missing Authorization to SQL Injection (high 8.8)
- [CVE-2024-1751](https://insights.sbomify.com/CVE-2024-1751/): Tutor LMS – eLearning and online course solution <= 2.6.1 - Authenticated (Subscriber+) SQL Injection (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-24183 and fix it if it is affected.

What it is: CVE-2021-24183 is a medium-severity SQL injection vulnerability in Unknown Tutor LMS – eLearning and online course solution, published on 5 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-24183 in the wild and no public exploit code.

Affected product: Unknown Tutor LMS – eLearning and online course solution. 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-2021-24183/ (Markdown: https://insights.sbomify.com/CVE-2021-24183/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-24183
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-24183
- OSV: https://osv.dev/vulnerability/CVE-2021-24183

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-24183/
Summaries are generated and may contain mistakes; the official description above is the record.