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Improper Restriction of XML External Entity Reference

CVE-2025-66371

Medium
5/10

Summary

Peppol-py versions prior to 1.1.1 allows XML External Entity (XXE) attacks because of the Saxon configuration. When validating XML-based invoices, the XML parser could read files from the filesystem and expose their content to a remote host.

  • LOW
  • NETWORK
  • NONE
  • CHANGED
  • NONE
  • LOW
  • LOW
  • NONE

CWE-611 - Improper Restriction of XML External Entity Reference

Listed 4th in the 'OWASP Top Ten', XML External Entities (XXE) vulnerability allows attackers to provide an XML input that contains an external entity. When the XML is parsed, it can cause data extraction and manipulation, execution of commands, denial-of-service attacks, and server-side request forgery.

References

Advisory Timeline

  • Published