CVE-2025-66254· NVD / CVE Program· CNA Gridware

Unauthenticated Arbitrary File Deletion (upgrade_contents.php)

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.

HighCVSS 7.8 · v4.0—No exploit No fix recorded

Published: Nov 25, 2025
Updated: Jun 17, 2026
EPSS: 0.4% · 30th percentile
CWE: CWE-73

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Action score

Monitor

Low priority for now.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.4%

CISA SSVC decision

Exploitation: proof of concept
Automatable: yes
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · Gridware: 7.8; NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

Vendor	Product	CPE
dbbroadcast	mozart next 100 firmware	cpe:2.3:o:dbbroadcast:mozart_next_100_firmware
dbbroadcast	mozart next 100	cpe:2.3:h:dbbroadcast:mozart_next_100
dbbroadcast	mozart next 1000 firmware	cpe:2.3:o:dbbroadcast:mozart_next_1000_firmware
dbbroadcast	mozart next 1000	cpe:2.3:h:dbbroadcast:mozart_next_1000
dbbroadcast	mozart next 2000 firmware	cpe:2.3:o:dbbroadcast:mozart_next_2000_firmware
dbbroadcast	mozart next 2000	cpe:2.3:h:dbbroadcast:mozart_next_2000
dbbroadcast	mozart next 30 firmware	cpe:2.3:o:dbbroadcast:mozart_next_30_firmware
dbbroadcast	mozart next 30	cpe:2.3:h:dbbroadcast:mozart_next_30
dbbroadcast	mozart next 300 firmware	cpe:2.3:o:dbbroadcast:mozart_next_300_firmware
dbbroadcast	mozart next 300	cpe:2.3:h:dbbroadcast:mozart_next_300
dbbroadcast	mozart next 3000 firmware	cpe:2.3:o:dbbroadcast:mozart_next_3000_firmware
dbbroadcast	mozart next 3000	cpe:2.3:h:dbbroadcast:mozart_next_3000

and 32 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

dbbroadcast mozart dds next 100 firmwareall versions
dbbroadcast mozart dds next 1000 firmwareall versions
dbbroadcast mozart dds next 2000 firmwareall versions
dbbroadcast mozart dds next 30 firmwareall versions
dbbroadcast mozart dds next 300 firmwareall versions
dbbroadcast mozart dds next 3000 firmwareall versions
dbbroadcast mozart dds next 3500 firmwareall versions
dbbroadcast mozart dds next 50 firmwareall versions
dbbroadcast mozart dds next 500 firmwareall versions
dbbroadcast mozart dds next 6000 firmwareall versions
dbbroadcast mozart dds next 7000 firmwareall versions
dbbroadcast mozart next 100 firmwareall versions
dbbroadcast mozart next 1000 firmwareall versions
dbbroadcast mozart next 2000 firmwareall versions
dbbroadcast mozart next 30 firmwareall versions
dbbroadcast mozart next 300 firmwareall versions
dbbroadcast mozart next 3000 firmwareall versions
dbbroadcast mozart next 3500 firmwareall versions
dbbroadcast mozart next 50 firmwareall versions
dbbroadcast mozart next 500 firmwareall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Gridware). Independent of NVD's CPE analysis and usually ahead of it.

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

Same product

dbbroadcast: all records

Other highest-scoring records for the same primary product.

CVE-2025-66261Unauthenticated OS Command Injection (restore_settings.php)
40Plan
CVE-2025-66253Unauthenticated OS Command Injection (start_upgrade.php)
40Plan
CVE-2025-66256Unauthenticated Arbitrary File Upload (patch_contents.php)
39Monitor
CVE-2025-63228The Mozart FM Transmitter web management interface on version WEBMOZZI-00287, contains an unauthenticated file upload vulnerability in the /
39Monitor
CVE-2025-66262Arbitrary File Overwrite via Tar Extraction Path Traversal
37Monitor
CVE-2025-66259Authenticated Root Remote Code Execution through improper filtering of HTTP post request parameters
37Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Abdul Mhannifinder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2025-662570 days apartUnauthenticated Arbitrary File Deletion (patch_contents.php)
36Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: X

Weakness class (CWE)

CWE-73 · External Control of File Name or Path

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

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