# CVE-2020-12736: Code injection in n/a

> Administrators can inject server-side code via email templates, leading to remote code execution on Code42 on-premises servers.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Jul 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-c3g2-jch4-vfp3

## What is CVE-2020-12736?

CVE-2020-12736 is a high-severity code injection vulnerability in n/a, published on 7 Jul 2020. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Code42 environments with on-premises server versions 7.0.4 and earlier allow for possible remote code execution. When an administrator creates a local (non-SSO) user via a Code42-generated email, the administrator has the option to modify content for the email invitation. If the administrator entered template language code in the subject line, that code could be interpreted by the email generation services, potentially resulting in server-side code injection.

Weakness: CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2020-12736?

It affects 1 product.


Products: Code42 Code42.

## How do I fix CVE-2020-12736?

No fix has been published for CVE-2020-12736 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-12736 being exploited?

There is no known exploitation of CVE-2020-12736 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2019-15131](https://insights.sbomify.com/CVE-2019-15131/): File upload in n/a (critical 9.8)
- [CVE-2021-43269](https://insights.sbomify.com/CVE-2021-43269/): Code injection in n/a (high 8.8)
- [CVE-2019-11553](https://insights.sbomify.com/CVE-2019-11553/): Privilege escalation in n/a (high 8.8)
- [CVE-2018-20131](https://insights.sbomify.com/CVE-2018-20131/): Path traversal in n/a (high 7.8)
- [CVE-2019-16860](https://insights.sbomify.com/CVE-2019-16860/): Privilege escalation in n/a (high 7.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-12736 and fix it if it is affected.

What it is: CVE-2020-12736 is a high-severity code injection vulnerability in n/a, published on 7 Jul 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-12736 in the wild and no public exploit code.

Affected product: n/a. 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-2020-12736/ (Markdown: https://insights.sbomify.com/CVE-2020-12736/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-12736
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-12736
- OSV: https://osv.dev/vulnerability/CVE-2020-12736

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-12736/
Summaries are generated and may contain mistakes; the official description above is the record.