Vulnerability · Published Nov 26, 2025 · Assigned by Gridware

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

High 7.8

In plain English

A high-severity security flaw in Mozart FM Transmitter from DB Electronica Telecomunicazioni S.p.A.. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).

Severity (CVSS 4.0)7.8High

Exploit odds (30 days)0.4%top 64.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
DB Electronica Telecomunicazioni S.p.A.	Mozart FM Transmitter	3050100300500100020003000

Weakness: CWE-73 · 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

References

https://www.abdulmhsblog.com/posts/webfmvulns/ exploit, technical-description