# CVE-2025-40769: Cross-site scripting in SINEC Traffic Analyzer

> An attacker can execute unauthorized scripts via unsafe Content Security Policy settings, potentially leading to cross-site scripting attacks.

- **Severity:** High 7.5 (`CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Aug 2025
- **Updated:** 12 Aug 2025
- **Also known as:** GHSA-w6vq-734q-7g6h

## What is CVE-2025-40769?

CVE-2025-40769 is a high-severity cross-site scripting vulnerability in Siemens SINEC Traffic Analyzer, published on 12 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability has been identified in SINEC Traffic Analyzer (6GK8822-1BG01-0BA0) (All versions < V3.0). The affected application uses a Content Security Policy that allows unsafe script execution methods. This could allow an attacker to execute unauthorized scripts, potentially leading to cross-site scripting attacks.

Weakness: CWE-1164 (Irrelevant Code)

## Which versions are affected by CVE-2025-40769?


## How do I fix CVE-2025-40769?

No fix has been published for CVE-2025-40769 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-40769 being exploited?

There is no known exploitation of CVE-2025-40769 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-40769 and fix it if it is affected.

What it is: CVE-2025-40769 is a high-severity cross-site scripting vulnerability in Siemens SINEC Traffic Analyzer, published on 12 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-40769 in the wild and no public exploit code.

Affected product: Siemens SINEC Traffic Analyzer. 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-2025-40769/ (Markdown: https://insights.sbomify.com/CVE-2025-40769/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-40769
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-40769
- OSV: https://osv.dev/vulnerability/CVE-2025-40769

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-40769/
Summaries are generated and may contain mistakes; the official description above is the record.