Access to external entities when parsing XML documents can lead to XML external entity (XXE) attacks. This flaw allows a remote attacker to potentially retrieve the content of arbitrary files by sending specially crafted HTTP requests.
It was found that the Token Processing Service (TPS) did not properly sanitize the Token IDs from the "Activity" page, enabling a Stored Cross Site Scripting (XSS) vulnerability. An unauthenticated attacker could trick an authenticated victim into creating a specially crafted activity, which would execute arbitrary JavaScript code when viewed in a browser. All versions of pki-core are believed to be vulnerable.