CVE-2023-34977Network attack vector

Authenticated script injection via undisclosed input handling

Published Oct 13, 2023 · Updated Sep 16, 2024

Cross-site scripting in QNAP Video Station 5.7.x before 5.7.0 allows remote authenticated users to inject malicious code via a network. QNAP has not disclosed the affected input, endpoint, or missing output-encoding operation within Video Station. Exploitation requires authenticated access and interaction by another user; injected code can read or modify data in that user's browser context without interrupting service.

CVSS severity5.4
Medium
EPSS probability0.30%
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 Video Station 5.7.x before 5.7.0 allows remote authenticated users to inject malicious code via a network. QNAP has not disclosed the affected input, endpoint, or missing output-encoding operation within Video Station. Exploitation requires authenticated access and interaction by another user; injected code can read or modify data in that user's browser context without interrupting service.

The record

CVE
CVE-2023-34977
Published
Oct 13, 2023
Updated
Sep 16, 2024
Vendor
Linn Products Limited
Product
Video Station
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=5.7.x <5.7.0 ( 2023/07/27 )

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Linn Products Limited · Video Stationversion=5.7.x <5.7.0 ( 2023/07/27 )

Published CVSS scores

4.6QNAP Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/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')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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