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PatchSiren cyber security CVE debrief

CVE-2026-9024 Dassault Systèmes CVE debrief

A stored cross-site scripting (XSS) vulnerability in DELMIA Service Process Engineer affects the Process Experience Studio component across 3DEXPERIENCE R2024x through R2026x. The flaw, rated CVSS 3.1 8.7 (High), could allow an authenticated attacker with low privileges to execute arbitrary script code in a victim's browser session. The attack requires user interaction and has a changed scope (S:C), with high impacts to confidentiality and integrity but no availability impact. The vendor has published a security advisory acknowledging the issue. No known exploitation in ransomware campaigns has been reported, and the vulnerability is not listed in CISA KEV.

Vendor
Dassault Systèmes
Product
DELMIA Service Process Engineer
CVSS
HIGH 8.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-01
Original CVE updated
2026-07-22
Advisory published
2026-06-01
Advisory updated
2026-07-22

Who should care

Organizations using DELMIA Service Process Engineer within 3DEXPERIENCE R2024x–R2026x, particularly those with multi-user Process Experience Studio deployments where stored content is shared across sessions. Security teams responsible for PLM/MES platform hardening and application security engineers managing XSS defenses in enterprise engineering software.

Technical summary

The vulnerability exists in the Process Experience Studio component of DELMIA Service Process Engineer, part of the 3DEXPERIENCE platform. A stored XSS flaw (CWE-79) allows script injection that persists and executes in other users' browser sessions. Affected versions span from Release 3DEXPERIENCE R2024x through R2026x. The CVSS 3.1 vector indicates network attack vector, low attack complexity, low privileges required, user interaction required, changed scope, high confidentiality and integrity impact, and no availability impact. The vendor has issued a dedicated security advisory. NVD analysis is pending as of publication.

Defensive priority

HIGH

Recommended defensive actions

  • Apply security updates from Dassault Systèmes when available per vendor advisory
  • Review and restrict user permissions within Process Experience Studio to least-privilege principles
  • Implement Content Security Policy (CSP) headers and output encoding defenses for web-based 3DEXPERIENCE components
  • Monitor for anomalous script execution or unauthorized data access within DELMIA Service Process Engineer sessions
  • Validate that input fields in Process Experience Studio sanitize user-supplied content before storage and rendering

Evidence notes

CVE published 2026-06-01; modified same day. CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N. Weakness: CWE-79. Vendor reference confirms Dassault Systèmes (3ds.com) as source. NVD status: Awaiting Analysis.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-9024 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-9024

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-9024 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-9024

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.