CVE-2020-8845 — Use After Free in Phantompdf

This vulnerability allows remote atackers to execute arbitrary code on affected installations of Foxit PhantomPDF 9.6.0.25114. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of watermarks in AcroForms. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to ex…