# CVE-2021-41678: SQL injection in n/a

> An attacker can execute arbitrary SQL commands via the staff TITLE parameter in openSIS, potentially reading or modifying database contents.

- **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:** 30 Nov 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-3w54-g522-46ww

## What is CVE-2021-41678?

CVE-2021-41678 is a critical SQL injection vulnerability in Os4ed Opensis, published on 30 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A SQL injection vulnerability exists in version 8.0 of openSIS when MySQL or MariaDB is used as the application database. An attacker can then issue the SQL command through the /opensis/modules/users/Staff.php, staff{TITLE] parameter.

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

## Which versions are affected by CVE-2021-41678?

It affects 1 product.


Products: Os4ed Opensis.

## How do I fix CVE-2021-41678?

No fix has been published for CVE-2021-41678 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-41678 being exploited?

There is no known exploitation of CVE-2021-41678 in the wild and no public exploit code.

## Other vulnerabilities in Os4ed Opensis

- [CVE-2020-6143](https://insights.sbomify.com/CVE-2020-6143/): Code injection in OS4Ed (critical 10.0)
- [CVE-2020-6144](https://insights.sbomify.com/CVE-2020-6144/): Code injection in OS4Ed (critical 10.0)
- [CVE-2020-6142](https://insights.sbomify.com/CVE-2020-6142/): Path traversal in OS4Ed (critical 9.9)
- [CVE-2021-41691](https://insights.sbomify.com/CVE-2021-41691/): SQL injection in n/a (critical 9.8)
- [CVE-2025-22926](https://insights.sbomify.com/CVE-2025-22926/): Path traversal in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-41678 and fix it if it is affected.

What it is: CVE-2021-41678 is a critical SQL injection vulnerability in Os4ed Opensis, published on 30 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-2021-41678 in the wild and no public exploit code.

Affected product: Os4ed Opensis. 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-2021-41678/ (Markdown: https://insights.sbomify.com/CVE-2021-41678/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-41678
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-41678
- OSV: https://osv.dev/vulnerability/CVE-2021-41678

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-41678/
Summaries are generated and may contain mistakes; the official description above is the record.