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Improper Restriction of XML External Entity Reference

CVE-2024-52806

Medium
6.9/10

Summary

SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. When loading an (untrusted) XML document, for example the SAMLResponse, it's possible to induce an XXE. This issue affects the packages simplesamlphp/saml2 and simplesamlphp/saml2-legacy versions prior to v4.6.14.

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