# CVE-2024-0647: Sparksuite SimpleMDE iFrame cross site scripting

> Remote attackers can execute arbitrary scripts via the iFrame handler in Sparksuite SimpleMDE, potentially compromising user sessions.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 17 Jan 2024
- **Updated:** 21 Oct 2024
- **Also known as:** GHSA-qx87-ch68-vxx2

## What is CVE-2024-0647?

CVE-2024-0647 is a medium-severity cross-site scripting vulnerability in Sparksuite SimpleMDE, published on 17 Jan 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A vulnerability, which was classified as problematic, was found in Sparksuite SimpleMDE up to 1.11.2. This affects an unknown part of the component iFrame Handler. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-251373 was assigned to this vulnerability.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2024-0647?

It affects 1 product.


Products: Sparksuite Simplemde.

## How do I fix CVE-2024-0647?

No fix has been published for CVE-2024-0647 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-0647 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-0647 exists.

## Other vulnerabilities in Sparksuite SimpleMDE

- [CVE-2018-19057](https://insights.sbomify.com/CVE-2018-19057/): SimpleMDE XSS Vulnerability (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-0647 and fix it if it is affected.

What it is: CVE-2024-0647 is a medium-severity cross-site scripting vulnerability in Sparksuite SimpleMDE, published on 17 Jan 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-0647 exists.

Affected product: Sparksuite SimpleMDE. 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-2024-0647/ (Markdown: https://insights.sbomify.com/CVE-2024-0647/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-0647
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-0647
- OSV: https://osv.dev/vulnerability/CVE-2024-0647

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-0647/
Summaries are generated and may contain mistakes; the official description above is the record.