CVE-2025-3983Public exploitNetwork attack vector

Authenticated command execution via unsanitized ProtocolType

Published Apr 27, 2025 · Updated May 2, 2025

Command injection in AMTT Hotel Broadband Operation System 1.0 allows remote authenticated users to execute commands through nlog_down.php. The endpoint directly concatenates attacker-controlled ProtocolType into $cmd and passes the result to popen() without filtering. A valid administrator session is required, and injected commands run with the web service's server-side privileges.

CVSS severity7.2
High
EPSS probability14.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Command injection in AMTT Hotel Broadband Operation System 1.0 allows remote authenticated users to execute commands through nlog_down.php. The endpoint directly concatenates attacker-controlled ProtocolType into $cmd and passes the result to popen() without filtering. A valid administrator session is required, and injected commands run with the web service's server-side privileges.

The record

CVE
CVE-2025-3983
Published
Apr 27, 2025
Updated
May 2, 2025
Vendor
AMTT (Shanghai) Internet Technology Inc., Ltd
Product
Hotel Broadband Operation System
Classifications
CWE-77, CWE-74, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 27, 2025CVE publishedPublication date reported by the CVE source.
  2. May 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

AMTT (Shanghai) Internet Technology Inc., Ltd · Hotel Broadband Operation Systemversion=1.0

Published CVSS scores

5.8VulDBAV:N/AC:L/Au:M/C:P/I:P/A:P
4.7VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
5.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo