# CVE-2023-45746: Cross-site scripting in Movable Type 7 (Movable Type 7 Series)

> Remote authenticated attackers can inject arbitrary scripts into Movable Type CMS, potentially leading to code execution or account takeover.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 30 Oct 2023
- **Updated:** 29 Oct 2024
- **Also known as:** GHSA-wpjj-rrr4-p36v

## What is CVE-2023-45746?

CVE-2023-45746 is a medium-severity cross-site scripting vulnerability in Six Apart Ltd. Movable Type 7 (Movable Type 7 Series), published on 30 Oct 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Cross-site scripting vulnerability in Movable Type series allows a remote authenticated attacker to inject an arbitrary script. Affected products/versions are as follows: Movable Type 7 r.5405 and earlier (Movable Type 7 Series), Movable Type Advanced 7 r.5405 and earlier (Movable Type 7 Series), Movable Type Premium 1.58 and earlier, Movable Type Premium Advanced 1.58 and earlier, Movable Type Cloud Edition (Version 7) r.5405 and earlier, and Movable Type Premium Cloud Edition 1.58 and earlier.

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

## Which versions are affected by CVE-2023-45746?

It affects 1 product.


Products: Sixapart Movable Type.

## How do I fix CVE-2023-45746?

No fix has been published for CVE-2023-45746 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-45746 being exploited?

There is no known exploitation of CVE-2023-45746 in the wild and no public exploit code.

## Other vulnerabilities in Six Apart Ltd. Movable Type 7 (Movable Type 7 Series)

- [CVE-2009-0752](https://insights.sbomify.com/CVE-2009-0752/): Other in n/a (critical 10.0)
- [CVE-2022-38078](https://insights.sbomify.com/CVE-2022-38078/): Command injection in Movable Type XMLRPC API (critical 9.8)
- [CVE-2021-20837](https://insights.sbomify.com/CVE-2021-20837/): Command injection in Movable Type (critical 9.8)
- [CVE-2016-5742](https://insights.sbomify.com/CVE-2016-5742/): SQL injection in n/a (critical 9.8)
- [CVE-2026-25776](https://insights.sbomify.com/CVE-2026-25776/): Code injection in Movable Type (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-45746 and fix it if it is affected.

What it is: CVE-2023-45746 is a medium-severity cross-site scripting vulnerability in Six Apart Ltd. Movable Type 7 (Movable Type 7 Series), published on 30 Oct 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-45746 in the wild and no public exploit code.

Affected product: Six Apart Ltd. Movable Type 7 (Movable Type 7 Series). 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-2023-45746/ (Markdown: https://insights.sbomify.com/CVE-2023-45746/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-45746
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-45746
- OSV: https://osv.dev/vulnerability/CVE-2023-45746

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From sbomify Insights: https://insights.sbomify.com/CVE-2023-45746/
Summaries are generated and may contain mistakes; the official description above is the record.