# CVE-2021-37708: Command injection in mail agent settings


- **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
- **Fix available:** Yes
- **Published:** 16 Aug 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-xh55-2fqp-p775

## What is CVE-2021-37708?

CVE-2021-37708 is a high-severity vulnerability in Shopware Shopware, published on 16 Aug 2021. 

### Official description

Shopware is an open source eCommerce platform. Versions prior to 6.4.3.1 contain a command injection vulnerability in mail agent settings. Version 6.4.3.1 contains a patch. As workarounds for older versions of 6.1, 6.2, and 6.3, corresponding security measures are also available via a plugin.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2021-37708?

4 open source packages ship an affected version, including shopware/core and shopware/platform. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `shopware/core` | Packagist | All versions | 6.4.3.1 |
| `shopware/core` | Packagist | All versions | 6.4.3.1 |
| `shopware/platform` | Packagist | All versions | 6.4.3.1 |
| `shopware/platform` | Packagist | All versions | 6.4.3.1 |

Products: Shopware Shopware.

## How do I fix CVE-2021-37708?

Upgrade shopware/core to 6.4.3.1 or later.

## Is CVE-2021-37708 being exploited?

There is no known exploitation of CVE-2021-37708 in the wild and no public exploit code.

## Other vulnerabilities in Shopware Shopware

- [CVE-2023-22731](https://insights.sbomify.com/CVE-2023-22731/): Improper Control of Generation of Code in Twig rendered views in shopware (critical 10.0)
- [CVE-2016-3109](https://insights.sbomify.com/CVE-2016-3109/): Shopware RCE Vulnerability (critical 9.8)
- [CVE-2024-22406](https://insights.sbomify.com/CVE-2024-22406/): Blind SQL-injection in DAL aggregations in Shopware (critical 9.3)
- [CVE-2021-32711](https://insights.sbomify.com/CVE-2021-32711/): Leak of information via Store-API (critical 9.1)
- [CVE-2026-31887](https://insights.sbomify.com/CVE-2026-31887/): Shopware unauthenticated data extraction possible through store-api.order endpoint (high 8.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-37708 and fix it if it is affected.

What it is: CVE-2021-37708 is a high-severity vulnerability in Shopware Shopware, published on 16 Aug 2021. 
Exploitation: There is no known exploitation of CVE-2021-37708 in the wild and no public exploit code.

Affected packages and fixed versions:
- shopware/core (Packagist): affected all versions; fixed in 6.4.3.1
- shopware/core (Packagist): affected all versions; fixed in 6.4.3.1
- shopware/platform (Packagist): affected all versions; fixed in 6.4.3.1
- shopware/platform (Packagist): affected all versions; fixed in 6.4.3.1

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-2021-37708/ (Markdown: https://insights.sbomify.com/CVE-2021-37708/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-37708
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-37708
- OSV: https://osv.dev/vulnerability/CVE-2021-37708

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-37708/
Summaries are generated and may contain mistakes; the official description above is the record.