CVE-2024-27122Network attack vector

Authenticated browser code execution via undisclosed input

Published Sep 6, 2024 · Updated Sep 6, 2024

Cross-site scripting in QNAP Notes Station 3 before 3.9.6 allows remote authenticated users to inject malicious code over a network. QNAP has not disclosed the affected input, rendering context, or missing neutralization operation. The attack requires user access and another user's interaction; injected script can read sensitive data and alter browser-visible content without interrupting the service.

CVSS severity6.3
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in QNAP Notes Station 3 before 3.9.6 allows remote authenticated users to inject malicious code over a network. QNAP has not disclosed the affected input, rendering context, or missing neutralization operation. The attack requires user access and another user's interaction; injected script can read sensitive data and alter browser-visible content without interrupting the service.

The record

CVE
CVE-2024-27122
Published
Sep 6, 2024
Updated
Sep 6, 2024
Vendor
Linn Products Limited
Product
Notes Station 3
Classifications
CWE-79, CAPEC-63
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 6, 2024Record 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=3.9.x <3.9.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Linn Products Limited · Notes Station 3version=3.9.x <3.9.6

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.3QNAP Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting

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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