CVE-2023-23354Network attack vector

Authenticated browser-code execution via undisclosed web input

Published Dec 19, 2024 · Updated Dec 24, 2024

Cross-site scripting in QNAP QuLog Center 1.3, 1.4, and 1.5 allows remote authenticated users to inject browser-executed code. QNAP has not disclosed the affected endpoint, input field, or missing output-encoding operation that permits the injected code. Exploitation requires authenticated network access and user interaction, and it can bypass browser security boundaries to read application data.

CVSS severity7.3
High
EPSS probability0.53%
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 QuLog Center 1.3, 1.4, and 1.5 allows remote authenticated users to inject browser-executed code. QNAP has not disclosed the affected endpoint, input field, or missing output-encoding operation that permits the injected code. Exploitation requires authenticated network access and user interaction, and it can bypass browser security boundaries to read application data.

The record

CVE
CVE-2023-23354
Published
Dec 19, 2024
Updated
Dec 24, 2024
Vendor
Linn Products Limited
Product
QuLog Center
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 2024Record 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=1.3.x.x <1.3.1.645 ( 2023/02/22 )
  2. Affected versionversion=1.4.x.x <1.4.1.691 ( 2023/03/01 )
  3. Affected versionversion=1.5.x.x <1.5.0.738 ( 2023/03/06 )

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Linn Products Limited · QuLog Centerversion=1.3.x.x <1.3.1.645 ( 2023/02/22 ); version=1.4.x.x <1.4.1.691 ( 2023/03/01 ); version=1.5.x.x <1.5.0.738 ( 2023/03/06 )

Published CVSS scores

8.7NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
7.3QNAP Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/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-592Stored XSS
T1059.007JavaScript/JScript

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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