CVE-2025-52583VulnerabilityPublished 16 Oct 2025

CVE-2025-52583: NEOJAPAN desknet's Web Server · Cross-site scripting (XSS)

Affects NEOJAPAN desknet's Web ServerSource CVE Database V5

Not known to be exploited · CVSS 6.1 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.0 base score

6.1Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 16 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
NEOJAPAN Inc. desknet's Web Server	Affected *	Fixed in–

AI-suggested

1. Apply security patches from NEOJAPAN Inc. as soon as they become available to address the vulnerability directly. 2. Implement strict input validation and output encoding on all user-supplied data to prevent injection of malicious scripts. 3. Deploy Content Security Policy (CSP) headers to restrict the execution of untrusted scripts and reduce the impact of XSS attacks. 4. Educate users about the risks of clicking on unsolicited or suspicious links, emphasizing caution with emails or messages containing URLs to desknet's Web Server. 5. Monitor web server logs and network traffic for unusual patterns indicative of attempted XSS exploitation, such as suspicious query parameters or repeated failed requests. 6. Use web application firewalls (WAF) with rules tuned to detect and block XSS payloads targeting desknet's Web Server. 7. Conduct regular security assessments and penetration testing focused on web application vulnerabilities to identify and remediate similar issues proactively. 8. Limit exposure of desknet's Web Server to only necessary users and networks, employing network segmentation and access controls to reduce attack surface. 9. Review and enforce secure cookie attributes (HttpOnly, Secure, SameSite) to protect session tokens from theft via XSS. 10. Maintain an incident response plan that includes procedures for handling XSS incidents and potential data breaches.

Description

Reflected cross-site scripting (XSS) vulnerability in desknet's Web Server allows execution of arbitrary JavaScript in a user’s web browser.

Impact

For European organizations, this vulnerability poses a moderate risk primarily to confidentiality and integrity of user sessions and data accessed through desknet's Web Server. Attackers could steal session cookies or credentials, enabling unauthorized access to sensitive information or internal resources. Manipulation of web content could lead to misinformation or further social engineering attacks. Although availability is not impacted, the breach of confidentiality could have regulatory implications under GDPR, especially if personal data is exposed. Organizations relying on desknet's Web Server for critical collaboration or document management may face operational disruptions if trust in the platform is compromised. The requirement for user interaction limits mass exploitation but targeted phishing campaigns could be effective. The absence of known exploits currently reduces immediate risk but does not eliminate future threats. European entities with extensive use of desknet's products, particularly in sectors like government, finance, and manufacturing, could be attractive targets due to the potential for lateral movement after initial compromise.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 16 Oct 2025, 10:30 UTC

Technical details

References

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