RCE in Adobe Acrobat Reader for android(CVE-2021-40724)

# Summary While testing Adobe Acrobat reader app , the app has a feature which allows user to open pdfs directly from http/https url. This feature was vulnerable to path traversal vulnerability. Abode reader was also using Google play core library for dynamic code loading. using path traversal bug and dynamic code loading,i was able to acheive remote code execution.