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Improper Restriction of XML External Entity Reference

CVE-2014-3529

Severity Medium
Score 4.3/10

Summary

The OPC SAX setup in Apache POI before 3.10.1 and 3.11-beta1 allows remote attackers to read arbitrary files via an OpenXML file containing an XML external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.

  • MEDIUM
  • NETWORK
  • NONE
  • NONE
  • PARTIAL
  • 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.

Advisory Timeline

  • Published