# CVE-2023-4873: Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform importexport.php os command injection

> Remote attackers can execute arbitrary OS commands via the importexport.php script in Byzoro Smart S45F gateways.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **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:** 10 Sep 2023
- **Updated:** 25 Jun 2025
- **Also known as:** GHSA-qmrr-rfcw-67r3

## What is CVE-2023-4873?

CVE-2023-4873 is a medium-severity command injection vulnerability in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform, published on 10 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability, which was classified as critical, was found in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform up to 20230906. Affected is an unknown function of the file /importexport.php. The manipulation of the argument sql leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-239358 is the identifier assigned to this vulnerability.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2023-4873?

It affects 1 product.


Products: Byzoro Smart S45f Firmware.

## How do I fix CVE-2023-4873?

No fix has been published for CVE-2023-4873 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-4873 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4873 exists.

## Other vulnerabilities in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform

- [CVE-2023-5488](https://insights.sbomify.com/CVE-2023-5488/): Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform updatelib.php unrestricted upload (medium 6.3)
- [CVE-2023-5489](https://insights.sbomify.com/CVE-2023-5489/): Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform uploadfile.php unrestricted upload (medium 6.3)
- [CVE-2023-5490](https://insights.sbomify.com/CVE-2023-5490/): Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform userattestation.php unrestricted upload (medium 6.3)
- [CVE-2023-5491](https://insights.sbomify.com/CVE-2023-5491/): Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform updatelib.php unrestricted upload (medium 6.3)
- [CVE-2023-5492](https://insights.sbomify.com/CVE-2023-5492/): Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform licence.php unrestricted upload (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-4873 and fix it if it is affected.

What it is: CVE-2023-4873 is a medium-severity command injection vulnerability in Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform, published on 10 Sep 2023. 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-2023-4873 exists.

Affected product: Byzoro Smart S45F Multi-Service Secure Gateway Intelligent Management Platform. 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-2023-4873/ (Markdown: https://insights.sbomify.com/CVE-2023-4873/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-4873
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-4873
- OSV: https://osv.dev/vulnerability/CVE-2023-4873

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-4873/
Summaries are generated and may contain mistakes; the official description above is the record.