What’s Vulnerable › Vulnerabilities

CVE-2021-31339

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-05-12 · updated 2026-06-17
• Weakness: CWE-209

Description

A vulnerability has been identified in Mendix Excel Importer Module (All versions < V9.0.3). Uploading a manipulated XML File results in an exception that could expose information about the Application-Server and the used XML-Framework.

Affected products

• Siemens Mendix Excel Importer Module: before 9.0.3 — fixed in 9.0.3

How to fix

Upgrade to a fixed version: Siemens Mendix Excel Importer Module 9.0.3. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-854248.pdf
• https://us-cert.cisa.gov/ics/advisories/icsa-21-131-09
• https://cert-portal.siemens.com/productcert/pdf/ssa-854248.pdf
• https://us-cert.cisa.gov/ics/advisories/icsa-21-131-09

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