Improper Restriction of XML External Entity Reference
An XML external entity (XXE) vulnerability in the Password Vault Web Access (PVWA) of CyberArk Enterprise Password Vault <=10.7 allows remote attackers to read arbitrary files or potentially bypass authentication via a crafted DTD in the SAML authentication system.
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.