# CVE-2023-1004: MarkText WSH JScript code injection

> A local attacker can execute arbitrary code via WSH JScript injection in MarkText on Windows.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Feb 2023
- **Updated:** 22 Nov 2024
- **Also known as:** GHSA-7p66-mwq8-x35w

## What is CVE-2023-1004?

CVE-2023-1004 is a medium-severity code injection vulnerability in MarkText, published on 24 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability has been found in MarkText up to 0.17.1 on Windows and classified as critical. Affected by this vulnerability is an unknown functionality of the component WSH JScript Handler. The manipulation leads to code injection. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The identifier VDB-221737 was assigned to this vulnerability.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2023-1004?

It affects 1 product.


Products: Marktext Marktext.

## How do I fix CVE-2023-1004?

No fix has been published for CVE-2023-1004 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-1004 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1004 exists.

## Other vulnerabilities in MarkText

- [CVE-2022-25069](https://insights.sbomify.com/CVE-2022-25069/): Cross-site scripting in n/a (critical 9.6)
- [CVE-2021-29996](https://insights.sbomify.com/CVE-2021-29996/): Cross-site scripting in n/a (critical 9.6)
- [CVE-2022-24123](https://insights.sbomify.com/CVE-2022-24123/): Cross-site scripting in n/a (critical 9.0)
- [CVE-2023-2318](https://insights.sbomify.com/CVE-2023-2318/): MarkText DOM-Based Cross-site Scripting leading to Remote Code Execution (high 8.6)
- [CVE-2020-27176](https://insights.sbomify.com/CVE-2020-27176/): Cross-site scripting in n/a (high 8.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-1004 and fix it if it is affected.

What it is: CVE-2023-1004 is a medium-severity code injection vulnerability in MarkText, published on 24 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1004 exists.

Affected product: MarkText. 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-2023-1004/ (Markdown: https://insights.sbomify.com/CVE-2023-1004/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-1004
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-1004
- OSV: https://osv.dev/vulnerability/CVE-2023-1004

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-1004/
Summaries are generated and may contain mistakes; the official description above is the record.