CVE-2025-54167Network attack vector

Administrator-level data access via cross-site scripting

Published Nov 7, 2025 · Updated Nov 7, 2025

Cross-site scripting in QNAP Notification Center 1.9.x, 2.1.x, and 3.0.x allows remote authenticated users to read application data. QNAP has not published the affected input, page, or rendering operation, so the exact failure to neutralize attacker-controlled content remains undisclosed. Exploitation requires an administrator account and passive user interaction; reported effects are security-mechanism bypass and application-data access.

CVSS severityUnavailable
Unscored
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Cross-site scripting in QNAP Notification Center 1.9.x, 2.1.x, and 3.0.x allows remote authenticated users to read application data. QNAP has not published the affected input, page, or rendering operation, so the exact failure to neutralize attacker-controlled content remains undisclosed. Exploitation requires an administrator account and passive user interaction; reported effects are security-mechanism bypass and application-data access.

The record

CVE
CVE-2025-54167
Published
Nov 7, 2025
Updated
Nov 7, 2025
Vendor
Linn Products Limited
Product
Notification Center
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 7, 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=1.9.x <1.9.2.3163
  2. Affected versionversion=2.1.x <2.1.0.3443
  3. Affected versionversion=3.0.x <3.0.0.3466

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Linn Products Limited · Notification Centerversion=1.9.x <1.9.2.3163; version=2.1.x <2.1.0.3443; version=3.0.x <3.0.0.3466

Published CVSS scores

7.2QNAP Systems, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

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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