# CVE-2021-47704: OpenBMCS SQL Injection via obix_test.php

> Authenticated attackers can inject SQL via the debug test script to extract database information from OpenBMCS.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA: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:** 9 Dec 2025
- **Updated:** 7 Apr 2026
- **Also known as:** GHSA-j96r-4w2q-c7qw

## What is CVE-2021-47704?

CVE-2021-47704 is a high-severity SQL injection vulnerability in OpenBMCS, published on 9 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

OpenBMCS 2.4 contains an SQL injection vulnerability that allows authenticated attackers to manipulate database queries by injecting arbitrary SQL code. Attackers can send GET requests to /debug/obix_test.php with malicious 'id' values to extract database information.

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

## Which versions are affected by CVE-2021-47704?

It affects 1 product.


Products: Openbmcs Openbmcs.

## How do I fix CVE-2021-47704?

No fix has been published for CVE-2021-47704 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-47704 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47704 exists.

## Other vulnerabilities in OpenBMCS

- [CVE-2021-47701](https://insights.sbomify.com/CVE-2021-47701/): OpenBMCS User Management Privilege Escalation (high 8.7)
- [CVE-2021-47718](https://insights.sbomify.com/CVE-2021-47718/): OpenBMCS Directory Listing Information Disclosure (high 8.7)
- [CVE-2021-47703](https://insights.sbomify.com/CVE-2021-47703/): OpenBMCS Server Side Request Forgery (SSRF) via /php/query.php (medium 6.9)
- [CVE-2021-47702](https://insights.sbomify.com/CVE-2021-47702/): OpenBMCS Cross Site Request Forgery (CSRF) via sendFeedback.php (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-47704 and fix it if it is affected.

What it is: CVE-2021-47704 is a high-severity SQL injection vulnerability in OpenBMCS, published on 9 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47704 exists.

Affected product: OpenBMCS. 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-2021-47704/ (Markdown: https://insights.sbomify.com/CVE-2021-47704/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-47704
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-47704
- OSV: https://osv.dev/vulnerability/CVE-2021-47704

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-47704/
Summaries are generated and may contain mistakes; the official description above is the record.