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Improper Restriction of XML External Entity Reference

CVE-2017-15280

Medium
5.5/10

Summary

XML External Entity (XXE) vulnerability in Umbraco CMS through 7.6.9, and 7.7.0 through 7.7.2 allows attackers to obtain sensitive information by reading files on the server or sending TCP requests to intranet hosts (aka Server-Side Request Forgery - SSRF), related to "Umbraco.Web/umbraco.presentation/umbraco/dialogs/importDocumenttype.aspx.cs".

  • LOW
  • LOCAL
  • NONE
  • UNCHANGED
  • REQUIRED
  • NONE
  • HIGH
  • 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