CVE-2024-7939Network attack vector

Browser script execution via stored content

Published Sep 2, 2024 · Updated Sep 13, 2024

Stored XSS in 3DSwym in Dassault Systèmes 3DSwymer R2024x allows remote authenticated users to execute scripts in a user's browser. Dassault Systèmes has not disclosed which 3DSwym input is stored or where output neutralization fails before the content is rendered. Exploitation requires low-privileged access to persist content and a separate user to view it, enabling script actions with that user's session privileges.

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 3DSwym in Dassault Systèmes 3DSwymer R2024x allows remote authenticated users to execute scripts in a user's browser. Dassault Systèmes has not disclosed which 3DSwym input is stored or where output neutralization fails before the content is rendered. Exploitation requires low-privileged access to persist content and a separate user to view it, enabling script actions with that user's session privileges.

The record

CVE
CVE-2024-7939
Published
Sep 2, 2024
Updated
Sep 13, 2024
Vendor
Dassault Systèmes
Product
3DSwymer
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 13, 2024Record 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=R2024x Golden <=R2024x.FP.CFA.2405
  2. Affected versionversion=Release 3DEXPERIENCE R2024x Golden <=Release 3DEXPERIENCE R2024x.FP.CFA.2405

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Dassault Systèmes · 3DSwymerversion=R2024x Golden <=R2024x.FP.CFA.2405; version=Release 3DEXPERIENCE R2024x Golden <=Release 3DEXPERIENCE R2024x.FP.CFA.2405

Published CVSS scores

8.7Dassault SystèmesCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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')
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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