# CVE-2020-27976: Command injection in n/a

> Remote attackers can execute arbitrary OS commands via the mail function in osCommerce Phoenix CE admin panel.

- **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:** 28 Oct 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-cqj9-3648-xf2m

## What is CVE-2020-27976?

CVE-2020-27976 is a critical command injection vulnerability in Oscommerce Oscommerce, published on 28 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

osCommerce Phoenix CE before 1.0.5.4 allows OS command injection remotely. Within admin/mail.php, a from POST parameter can be passed to the application. This affects the PHP mail function, and the sendmail -f option.

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

## Which versions are affected by CVE-2020-27976?

It affects 1 product.


Products: Oscommerce Oscommerce.

## How do I fix CVE-2020-27976?

No fix has been published for CVE-2020-27976 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-27976 being exploited?

There is no known exploitation of CVE-2020-27976 in the wild and no public exploit code.

Public exploit code:

- osCommerce Phoenix CE <=1.0.5.4 Authenticated RCE (github_poc): https://github.com/k0rnh0li0/CVE-2020-27976

## Other vulnerabilities in Oscommerce Oscommerce

- [CVE-2020-23360](https://insights.sbomify.com/CVE-2020-23360/): Auth bypass in n/a (critical 9.8)
- [CVE-2019-25495](https://insights.sbomify.com/CVE-2019-25495/): osCommerce 2.3.4.1 SQL Injection via reviews_id Parameter (high 8.8)
- [CVE-2019-25496](https://insights.sbomify.com/CVE-2019-25496/): osCommerce 2.3.4.1 SQL Injection via products_id Parameter (high 8.8)
- [CVE-2019-25497](https://insights.sbomify.com/CVE-2019-25497/): osCommerce 2.3.4.1 SQL Injection via currency Parameter (high 8.8)
- [CVE-2020-27975](https://insights.sbomify.com/CVE-2020-27975/): Cross-site request forgery in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-27976 and fix it if it is affected.

What it is: CVE-2020-27976 is a critical command injection vulnerability in Oscommerce Oscommerce, published on 28 Oct 2020. 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-2020-27976 in the wild and no public exploit code.

Affected product: Oscommerce Oscommerce. 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-2020-27976/ (Markdown: https://insights.sbomify.com/CVE-2020-27976/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-27976
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-27976
- OSV: https://osv.dev/vulnerability/CVE-2020-27976

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-27976/
Summaries are generated and may contain mistakes; the official description above is the record.