Improper Restriction of XML External Entity Reference
The AMF framework in Granite Data Services 3.1.1-SNAPSHOT allows remote authenticated users to read arbitrary files, send TCP requests to intranet servers, or cause a denial of service via an XML external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.
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.