Adobe Flash Player opaqueBackground Use-After-Free

This repository contains a single Metasploit module that exploits a use-after-free vulnerability (CVE-2015-5122) in Adobe Flash Player's handling of the opaqueBackground property. The exploit targets Windows systems (XP through 10) running vulnerable versions of Flash Player (<= 18.0.0.203) in browsers such as Internet Explorer and Firefox. The module sets up a browser exploit server that delivers a malicious HTML page embedding a crafted SWF file. When a victim visits the attacker's page, the SWF triggers the vulnerability, allowing execution of a Metasploit payload (such as a reverse shell) on the victim's machine. The module references the official Flash ActiveX control download URL and uses a local SWF file as the exploit vector. The code is written in Ruby and is structured as a typical Metasploit exploit module, with clear separation of initialization, payload delivery, and exploit logic.