CVE 9.9 CRITICAL

Unauthenticated Arbitrary File Upload (upgrade_contents.php)_CVE-2025-66255

November 25, 2025 invoker category_cve

9.9 / 10

CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:N/SA:N

Description

Unauthenticated Arbitrary File Upload (upgrade_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 Missing signature validation allows uploading malicious firmware packages.
The firmware upgrade endpoint in `upgrade_contents.php` accepts arbitrary file uploads without validating file headers, cryptographic signatures, or enforcing .tgz format requirements, allowing malicious firmware injection. This endpoint also subsequently provides ways for arbitrary file uploads and subsequent remote code execution

AI Analysis

Unauthenticated arbitrary file upload vulnerability in DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter, allowing attackers to upload malicious firmware packages

Basic Information

ID CVE-2025-66255

Source Gridware

Published Nov 26, 2025 at 00:39

Affected Product

Vendor DB Electronica Telecomunicazioni S.p.A.

Product Mozart FM Transmitter

Version 30, 50, 100, 300, 500, 1000, 2000, 3000, 3500, 6000, 7000

Affected Versions DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter 30
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter 50
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter 100
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter 300
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter 500
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter 1000
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter 2000
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter 3000
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter 3500
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter 6000
DB Electronica Telecomunicazioni S.p.A. Mozart FM Transmitter 7000

CWE Classification

CWE-345

AI Assessment

AI Score 9.9 / 10

AI Severity Critical

Vendor DB Electronica Telecomunicazioni S.p.A.

Product Mozart FM Transmitter

Version 30, 50, 100, 300, 500, 1000, 2000, 3000, 3500, 6000, 7000

References

www.abdulmhsblog.com /posts/webfmvulns/

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    "published": "2025-11-26T00:39:56.984Z",
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