CVE-2025-52583Network attack vector

Browser script execution via reflected request input

Published Oct 16, 2025 · Updated Oct 16, 2025

Reflected XSS in all versions of NEOJAPAN desknet's Web Server allows remote attackers to run JavaScript in a user's browser via crafted requests. NEOJAPAN has not disclosed the affected request handler, input parameter, or the operation that reflects untrusted input into the response. Exploitation requires a user to open an attacker-controlled request, after which the script runs in that user's browser context and can read or modify data available to that session.

CVSS severity6.1
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in all versions of NEOJAPAN desknet's Web Server allows remote attackers to run JavaScript in a user's browser via crafted requests. NEOJAPAN has not disclosed the affected request handler, input parameter, or the operation that reflects untrusted input into the response. Exploitation requires a user to open an attacker-controlled request, after which the script runs in that user's browser context and can read or modify data available to that session.

The record

CVE
CVE-2025-52583
Published
Oct 16, 2025
Updated
Oct 16, 2025
Vendor
NEOJAPAN Inc.
Product
desknet's Web Server
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 16, 2025Record 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=all versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

NEOJAPAN Inc. · desknet's Web Serverversion=all versions

Published CVSS scores

6.1JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.1JPCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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