# CVE-2024-36140: Cross-site scripting in OZW672

> Authenticated attackers can inject JavaScript into user accounts, enabling privilege escalation against higher-privileged users on Siemens OZW devices.

- **Severity:** High 8.2 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:H/SA: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:** 12 Nov 2024
- **Updated:** 12 Nov 2024
- **Also known as:** GHSA-w95c-2q6h-h5mp

## What is CVE-2024-36140?

CVE-2024-36140 is a high-severity cross-site scripting vulnerability in Siemens OZW672, published on 12 Nov 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

A vulnerability has been identified in OZW672 (All versions < V5.2), OZW772 (All versions < V5.2). The user accounts tab of affected devices is vulnerable to stored cross-site scripting (XSS) attacks.

This could allow an authenticated remote attacker to inject arbitrary JavaScript code that is later executed by another authenticated victim user with potential higher privileges than the attacker.

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

## Which versions are affected by CVE-2024-36140?

It affects 2 products.


Products: Siemens Ozw672 Firmware, Siemens Ozw772 Firmware.

## How do I fix CVE-2024-36140?

No fix has been published for CVE-2024-36140 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-36140 being exploited?

There is no known exploitation of CVE-2024-36140 in the wild and no public exploit code.

## Other vulnerabilities in Siemens OZW672

- [CVE-2025-26389](https://insights.sbomify.com/CVE-2025-26389/): Command injection in OZW672 (critical 10.0)
- [CVE-2025-26390](https://insights.sbomify.com/CVE-2025-26390/): SQL injection in OZW672 (critical 9.3)
- [CVE-2019-13941](https://insights.sbomify.com/CVE-2019-13941/): Information disclosure in OZW672 (high 7.5)
- [CVE-2017-6873](https://insights.sbomify.com/CVE-2017-6873/): Security feature bypass in OZW672, OZW772 (high 7.4)
- [CVE-2017-6872](https://insights.sbomify.com/CVE-2017-6872/): Missing authorization in OZW672, OZW772 (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-36140 and fix it if it is affected.

What it is: CVE-2024-36140 is a high-severity cross-site scripting vulnerability in Siemens OZW672, published on 12 Nov 2024. 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-2024-36140 in the wild and no public exploit code.

Affected product: Siemens OZW672. 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-2024-36140/ (Markdown: https://insights.sbomify.com/CVE-2024-36140/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-36140
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-36140
- OSV: https://osv.dev/vulnerability/CVE-2024-36140

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-36140/
Summaries are generated and may contain mistakes; the official description above is the record.