# CVE-2021-45252: SQL injection in n/a

> Attackers can exploit SQL injection flaws in Simple Forum-Discussion System to retrieve all information from the database.

- **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:** 21 Dec 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-39rq-cqj8-g6q7

## What is CVE-2021-45252?

CVE-2021-45252 is a critical SQL injection vulnerability in n/a, published on 21 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Multiple SQL injection vulnerabilities are found on Simple Forum-Discussion System 1.0 For example on three applications which are manage_topic.php, manage_user.php, and ajax.php. The attacker can be retrieving all information from the database of this system by using this vulnerability.

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

## Which versions are affected by CVE-2021-45252?

It affects 1 product.


Products: Oretnom23 Simple Forum\/Discussion System.

## How do I fix CVE-2021-45252?

No fix has been published for CVE-2021-45252 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-45252 being exploited?

There is no known exploitation of CVE-2021-45252 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2025-10100](https://insights.sbomify.com/CVE-2025-10100/): SourceCodester Simple Forum Discussion System admin_class.php sql injection (medium 6.9)
- [CVE-2025-10790](https://insights.sbomify.com/CVE-2025-10790/): SourceCodester Simple Forum Discussion System ajax.php sql injection (medium 5.3)
- [CVE-2024-9032](https://insights.sbomify.com/CVE-2024-9032/): SourceCodester Simple Forum-Discussion System index.php path traversal (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-45252 and fix it if it is affected.

What it is: CVE-2021-45252 is a critical SQL injection vulnerability in n/a, published on 21 Dec 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-2021-45252 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-2021-45252/ (Markdown: https://insights.sbomify.com/CVE-2021-45252/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-45252
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-45252
- OSV: https://osv.dev/vulnerability/CVE-2021-45252

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-45252/
Summaries are generated and may contain mistakes; the official description above is the record.