The vulnerability is triggered by crafted XFA script definitions in a PDF file. This vulnerability is an instance of a use after free vulnerability in the XFA engine, related to DOM manipulation. The attacker then needs to convince the victim to open the document.Īn issue was discovered in Adobe Acrobat Reader 2018.009.20050 and earlier versions, 2017.011.30070 and earlier versions, 2015.006.30394 and earlier versions. To exploit this issue, an attacker must acquire and then modify a certified PDF document that is trusted by the victim. Acrobat Reader DC versions 2020.012.20048 (and earlier), 2020.001.30005 (and earlier) and 2017.011.30175 (and earlier) and Adobe Acrobat Pro DC 2017.011.30175 (and earlier) are affected by an improper input validation vulnerability that could result in arbitrary JavaScript execution in the context of the current user.
