A use-after-free vulnerability exists in the way Foxit Reader 2024.3.0.26795 handles a checkbox CBF_Widget object. A specially crafted Javascript code inside a malicious PDF document can trigger this vulnerability, which can lead to memory corruption and result in arbitrary code execution. An attacker needs to trick the user into opening the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.
A privilege escalation vulnerability exists in the Foxit Reader 2024.2.0.25138. The vulnerability occurs due to improper certification validation of the updater executable before executing it. A low privilege user can trigger the update action which can result in unexpected elevation of privilege.
In Foxit PDF Reader before 2024.1 and PDF Editor before 2024.1, code execution via JavaScript could occur because of an unoptimized prompt message for users to review parameters of commands.
Foxit PDF Reader before 12.0.1 and PDF Editor before 12.0.1 allow a NULL pointer dereference when this.Span is used for oState of Collab.addStateModel, because this.Span.text can be NULL.