CVE-2025-66254 HIGH

CVE-2025-66254: Unauthenticated Arbitrary File Deletion (upgrade_contents.php)

Vendor Db Electronica Telecomunicazioni S.p.a.
Product Mozart FM Transmitter
Weakness CWE-73
Published November 26, 2025
Last update December 3, 2025

CVSS base score

7.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

Unauthenticated Arbitrary File Deletion (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 The deleteupgrade parameter allows unauthenticated deletion of arbitrary files.  The `deleteupgrade` parameter in `/var/www/upgrade_contents.php` allows unauthenticated deletion of arbitrary files in `/var/www/upload/` without any extension restriction or path sanitization, enabling attackers to remove critical system files.

Key dates

02Disclosure timeline

November 26, 2025 CVE published
December 3, 2025 Record updated