Stored XSS via unencoded patch filename injection
Published Nov 26, 2025 · Updated Nov 26, 2025
Stored XSS in the Mozart FM Transmitter interface allows remote attackers to execute script through a crafted patch filename. patch_contents.php concatenates the uploaded filename into patchlist.xml without encoding, and ajax.js renders the resulting markup. An attacker must place a maliciously named patch file and wait for an operator to load the affected interface, exposing the operator's browser session to script actions.
Summary
What happened
Stored XSS in the Mozart FM Transmitter interface allows remote attackers to execute script through a crafted patch filename. patch_contents.php concatenates the uploaded filename into patchlist.xml without encoding, and ajax.js renders the resulting markup. An attacker must place a maliciously named patch file and wait for an operator to load the affected interface, exposing the operator's browser session to script actions.
The record
- CVE
- CVE-2025-66258
- Published
- Nov 26, 2025
- Updated
- Nov 26, 2025
- Vendor
- DB Elettronica Telecomunicazioni S.p.A.
- Product
- Mozart FM Transmitter
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 26, 2025CVE publishedPublication date reported by the CVE source.
- Nov 26, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=100
- Affected versionversion=1000
- Affected versionversion=2000
- Affected versionversion=30
- Affected versionversion=300
- Affected versionversion=3000
- Affected versionversion=3500
- Affected versionversion=50
- Affected versionversion=500
- Affected versionversion=6000
- Affected versionversion=7000
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Crafted patch filename stored-XSS payloadproof of concept · unverified
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Technologies
Your stack
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Your stack
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