# CVE-2025-66257: Unauthenticated Arbitrary File Deletion (patch_contents.php)

> Unauthenticated attackers can delete arbitrary files via the deletepatch parameter in patch_contents.php, potentially causing denial of service or data loss.

- **Severity:** Critical 9.2 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Nov 2025
- **Updated:** 26 Nov 2025
- **Also known as:** GHSA-g8rh-w59p-62h4

## What is CVE-2025-66257?

CVE-2025-66257 is a critical path traversal vulnerability in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter, published on 26 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Unauthenticated Arbitrary File Deletion (patch_contents.php) in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter versions 30, 50, 100, 300, 500, 1000, 2000, 3000, 3500, 6000, 7000 allows an attacker to perform The deletepatch parameter allows unauthenticated deletion of arbitrary files.
The `deletepatch` parameter in `patch_contents.php` allows unauthenticated deletion of arbitrary files in `/var/www/patch/` directory without sanitization or access control checks.

Weakness: CWE-73 (External Control of File Name or Path)

## Which versions are affected by CVE-2025-66257?

It affects 22 products.


Products: Dbbroadcast Mozart Dds Next 1000 Firmware, Dbbroadcast Mozart Dds Next 100 Firmware, Dbbroadcast Mozart Dds Next 2000 Firmware, Dbbroadcast Mozart Dds Next 3000 Firmware, Dbbroadcast Mozart Dds Next 300 Firmware, Dbbroadcast Mozart Dds Next 30 Firmware, Dbbroadcast Mozart Dds Next 3500 Firmware, Dbbroadcast Mozart Dds Next 500 Firmware, Dbbroadcast Mozart Dds Next 50 Firmware, Dbbroadcast Mozart Dds Next 6000 Firmware, Dbbroadcast Mozart Dds Next 7000 Firmware, Dbbroadcast Mozart Next 1000 Firmware, Dbbroadcast Mozart Next 100 Firmware, Dbbroadcast Mozart Next 2000 Firmware, Dbbroadcast Mozart Next 3000 Firmware, Dbbroadcast Mozart Next 300 Firmware, Dbbroadcast Mozart Next 30 Firmware, Dbbroadcast Mozart Next 3500 Firmware, Dbbroadcast Mozart Next 500 Firmware, Dbbroadcast Mozart Next 50 Firmware and 2 more.

## How do I fix CVE-2025-66257?

No fix has been published for CVE-2025-66257 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-66257 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66257 exists.

## Other vulnerabilities in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter

- [CVE-2025-66253](https://insights.sbomify.com/CVE-2025-66253/): Unauthenticated OS Command Injection (start_upgrade.php) (critical 9.9)
- [CVE-2025-66255](https://insights.sbomify.com/CVE-2025-66255/): Unauthenticated Arbitrary File Upload (upgrade_contents.php) (critical 9.9)
- [CVE-2025-66256](https://insights.sbomify.com/CVE-2025-66256/): Unauthenticated Arbitrary File Upload (patch_contents.php) (critical 9.9)
- [CVE-2025-66261](https://insights.sbomify.com/CVE-2025-66261/): Unauthenticated OS Command Injection (restore_settings.php) (critical 9.9)
- [CVE-2025-63228](https://insights.sbomify.com/CVE-2025-63228/): File upload in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-66257 and fix it if it is affected.

What it is: CVE-2025-66257 is a critical path traversal vulnerability in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter, published on 26 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-66257 exists.

Affected product: DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter. 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-2025-66257/ (Markdown: https://insights.sbomify.com/CVE-2025-66257/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-66257
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-66257
- OSV: https://osv.dev/vulnerability/CVE-2025-66257

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-66257/
Summaries are generated and may contain mistakes; the official description above is the record.