Skip to main content

Improper Restriction of XML External Entity Reference

CVE-2015-3451

Medium
5/10

Summary

The "_clone" function in XML-LibXML before 2.0119 does not properly set the expand_entities option, which allows remote attackers to conduct XML external entity (XXE) attacks via crafted XML data to the (1) "new" or (2) "load_xml" function.

  • LOW
  • 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.

References

Advisory Timeline

  • Published