Actionpack Page-caching Security Vulnerabilities

CVE-2020-8159

There is a vulnerability in actionpack_page-caching gem < v1.2.1 that allows an attacker to write arbitrary files to a web server, potentially resulting in remote code execution if the attacker can write unescaped ERB to a view.

CVE-2021-22885

A possible information disclosure / unintended method execution vulnerability in Action Pack >= 2.0.0 when using the redirect_to or polymorphic_urlhelper with untrusted user input.