The TIBCO EBX Add-on for Oracle Hyperion EPM, TIBCO EBX Data Exchange Add-on, and TIBCO EBX Insight Add-on components of TIBCO Software Inc.'s TIBCO EBX Add-ons contain a vulnerability that theoretically allows a low privileged attacker with network access to execute an XML External Entity (XXE) attack. Affected releases are TIBCO Software Inc.'s TIBCO EBX Add-ons: versions 4.4.2 and below.