CVE-2023-53963Public exploitNetwork attack vector

Unauthenticated command execution via password parameter

Published Dec 22, 2025 · Updated Dec 22, 2025

OS command injection in Kantar Media broadcast appliances allows remote attackers to execute shell commands without authentication. The login.php and index.php handlers concatenate the password POST value directly into a PHP exec() command that invokes /opt/sound4/sound4server without shell escaping or validation. A network-reachable management interface is sufficient; commands run as the web-server account, enabling reads, writes, or service interruption within that account's permissions.

CVSS severity9.3
Critical
EPSS probability3.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Kantar Media broadcast appliances allows remote attackers to execute shell commands without authentication. The login.php and index.php handlers concatenate the password POST value directly into a PHP exec() command that invokes /opt/sound4/sound4server without shell escaping or validation. A network-reachable management interface is sufficient; commands run as the web-server account, enabling reads, writes, or service interruption within that account's permissions.

The record

CVE
CVE-2023-53963
Published
Dec 22, 2025
Updated
Dec 22, 2025
Vendor
Kantar Media
Product
IMPACT / PULSE / FIRST
Classifications
CWE-78, T1059.004, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 22, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Version 2: 1.1/2.15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Kantar Media · IMPACT / PULSE / FIRSTversion=Version 2: 1.1/2.15
Kantar Media · BIG VOICE 2version=1.30
Kantar Media · WM2version=1.11
Kantar Media · IMPACT / PULSE Ecoversion=1.16
Kantar Media · BIG VOICE 4version=1.2

Published CVSS scores

9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter Unix Shell
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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