Acrobat Reader versions 24.005.20307, 24.001.30213, 24.001.30193, 20.005.30730, 20.005.30710 and earlier are affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability that allows an attacker to provide malicious XML input containing a reference to an external entity, potentially leading to unauthorized read access outside the Acrobat sandbox. Exploitation of this issue requires user interaction in that a victim must process a malicious XML document.