CVE-2025-4983Network attack vector

Browser-session script execution via stored content

Published May 30, 2025 · Updated May 30, 2025

Stored XSS in Dassault Systèmes City Referential Manager R2025x allows remote authenticated users to run scripts in a user's browser. Dassault Systèmes identifies the City Referential component but has not disclosed which stored field accepts unsafe content or where output encoding fails. Low-privileged access is required to persist the payload, and a user must view the affected content; the script can read or alter data available to that browser session.

CVSS severity8.7
High
EPSS probability0.31%
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 Dassault Systèmes City Referential Manager R2025x allows remote authenticated users to run scripts in a user's browser. Dassault Systèmes identifies the City Referential component but has not disclosed which stored field accepts unsafe content or where output encoding fails. Low-privileged access is required to persist the payload, and a user must view the affected content; the script can read or alter data available to that browser session.

The record

CVE
CVE-2025-4983
Published
May 30, 2025
Updated
May 30, 2025
Vendor
Dassault Systèmes
Product
City Referential Manager
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 30, 2025CVE publishedPublication date reported by the CVE source.
  2. May 30, 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=Release 3DEXPERIENCE R2025x Golden

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Dassault Systèmes · City Referential Managerversion=Release 3DEXPERIENCE R2025x Golden

Published CVSS scores

8.7Dassault SystèmesCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1059.007JavaScript/JScript

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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