CVE-2025-1679Public exploitNetwork attack vector

Stored XSS via unneutralized administrative field

Published Oct 23, 2025 · Updated Oct 23, 2025

Stored XSS in Moxa TN switch firmware through 3.13 or 5.5 allows remote authenticated users to inject persistent scripts. The web service stores an administrative field without neutralizing script content and later places it in pages viewed through the management interface. Administrative access is required to plant the payload, which executes in authenticated users' browsers and affects subsequent-system confidentiality and integrity.

CVSS severity4.8
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

Stored XSS in Moxa TN switch firmware through 3.13 or 5.5 allows remote authenticated users to inject persistent scripts. The web service stores an administrative field without neutralizing script content and later places it in pages viewed through the management interface. Administrative access is required to plant the payload, which executes in authenticated users' browsers and affects subsequent-system confidentiality and integrity.

The record

CVE
CVE-2025-1679
Published
Oct 23, 2025
Updated
Oct 23, 2025
Vendor
Moxa
Product
TN-4500A Series
Classifications
CWE-79, CAPEC-63, T1056.001
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 23, 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 <=3.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Moxa · TN-4500A Seriesversion=1.0 <=3.13
Moxa · TN-5500A Seriesversion=1.0 <=3.13
Moxa · TN-G6500 Seriesversion=1.0 <=5.5
Moxa · TN-G4500 Seriesversion=1.0 <=5.5

Published CVSS scores

4.8Moxa Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting (XSS)
T1056.001Input Capture: Keylogging

Public exploit references

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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