# CVE-2019-9785: Code injection in n/a

> Remote attackers can execute arbitrary code in GitNote by tricking users into opening a crafted Markdown file containing malicious JavaScript.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 14 Mar 2019
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-x4cr-8fcr-8qvc

## What is CVE-2019-9785?

CVE-2019-9785 is a high-severity code injection vulnerability in n/a, published on 14 Mar 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

gitnote 3.1.0 allows remote attackers to execute arbitrary code via a crafted Markdown file, as demonstrated by a javascript:window.parent.top.require('child_process').execFile substring in the onerror attribute of an IMG element.

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

## Which versions are affected by CVE-2019-9785?

It affects 1 product.


Products: Gitnoteapp Gitnote.

## How do I fix CVE-2019-9785?

No fix has been published for CVE-2019-9785 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-9785 being exploited?

There is no known exploitation of CVE-2019-9785 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-9785 and fix it if it is affected.

What it is: CVE-2019-9785 is a high-severity code injection vulnerability in n/a, published on 14 Mar 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-9785 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-2019-9785/ (Markdown: https://insights.sbomify.com/CVE-2019-9785/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-9785
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-9785
- OSV: https://osv.dev/vulnerability/CVE-2019-9785

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-9785/
Summaries are generated and may contain mistakes; the official description above is the record.