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Improper Restriction of XML External Entity Reference

CVE-2021-22523

High
7.6/10

Summary

XML External Entity vulnerability in Micro Focus Verastream Host Integrator, affecting version 7.8 Update 1 and earlier versions. The vulnerability could allow the control of web browser and hijacking user sessions.

  • LOW
  • NETWORK
  • LOW
  • UNCHANGED
  • REQUIRED
  • NONE
  • HIGH
  • LOW

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