# CVE-2023-27521: Command injection in SolarView Compact

> Remote authenticated attackers can execute arbitrary OS commands via the mail setting page in SolarView Compact devices.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 23 May 2023
- **Updated:** 31 Jan 2025
- **Also known as:** GHSA-g954-8257-gr6c

## What is CVE-2023-27521?

CVE-2023-27521 is a high-severity command injection vulnerability in Contec Co., Ltd. SolarView Compact, published on 23 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

OS command injection vulnerability in the mail setting page of SolarView Compact SV-CPT-MC310 versions prior to Ver.8.10 and SV-CPT-MC310F versions prior to Ver.8.10 allows remote authenticated attackers to execute an arbitrary OS command.

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

## Which versions are affected by CVE-2023-27521?

It affects 2 products.


Products: Contec Sv-Cpt-Mc310 Firmware, Contec Sv-Cpt-Mc310f Firmware.

## How do I fix CVE-2023-27521?

No fix has been published for CVE-2023-27521 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-27521 being exploited?

There is no known exploitation of CVE-2023-27521 in the wild and no public exploit code.

## Other vulnerabilities in Contec Co., Ltd. SolarView Compact

- [CVE-2022-29303](https://insights.sbomify.com/CVE-2022-29303/): SolarView Compact Command Injection (critical 9.8, exploited in the wild)
- [CVE-2022-31374](https://insights.sbomify.com/CVE-2022-31374/): File upload in n/a (critical 9.8)
- [CVE-2021-20658](https://insights.sbomify.com/CVE-2021-20658/): SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an attacker to execute arbitrary OS commands with the web server privilege via unspecified vectors. (critical 9.8)
- [CVE-2023-27514](https://insights.sbomify.com/CVE-2023-27514/): Command injection in SolarView Compact (high 8.8)
- [CVE-2023-27518](https://insights.sbomify.com/CVE-2023-27518/): Memory corruption in SolarView Compact (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-27521 and fix it if it is affected.

What it is: CVE-2023-27521 is a high-severity command injection vulnerability in Contec Co., Ltd. SolarView Compact, published on 23 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-27521 in the wild and no public exploit code.

Affected product: Contec Co., Ltd. SolarView Compact. 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-2023-27521/ (Markdown: https://insights.sbomify.com/CVE-2023-27521/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-27521
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-27521
- OSV: https://osv.dev/vulnerability/CVE-2023-27521

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-27521/
Summaries are generated and may contain mistakes; the official description above is the record.