CVE-2025-4376Network attack vector

Browser data disclosure via unneutralized model search

Published May 9, 2025 · Updated Aug 26, 2026

Cross-site scripting in Sparx Systems Pro Cloud Server before 6.0.165 allows remote attackers to run script via WebEA model search. The WebEA model search field fails to neutralize attacker-controlled input during page generation, causing a browser to interpret the submitted value as active content. No authentication is required, but another user's browser must render the crafted search content; the published assessment limits impact to reading data available to that browser.

CVSS severity5.3
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-site scripting in Sparx Systems Pro Cloud Server before 6.0.165 allows remote attackers to run script via WebEA model search. The WebEA model search field fails to neutralize attacker-controlled input during page generation, causing a browser to interpret the submitted value as active content. No authentication is required, but another user's browser must render the crafted search content; the published assessment limits impact to reading data available to that browser.

The record

CVE
CVE-2025-4376
Published
May 9, 2025
Updated
Aug 26, 2026
Vendor
Sparx Systems
Product
Pro Cloud Server
Classifications
CWE-79, CAPEC-63, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2026Record 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=0 <=6.0.164

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Sparx Systems · Pro Cloud Serverversion=0 <=6.0.164

Published CVSS scores

5.3National Cyber Security Centre FinlandCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/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')
CAPEC-63Cross-Site Scripting (XSS)
T1059.007Command and Scripting Interpreter: JavaScript

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo