The mailcap module does not add escape characters into commands discovered in the system mailcap file. (CVE-2015-20107) Allows an attacker to set up a malicious FTP server that can trick FTP clients into connecting back to a given IP address and port. (CVE-2021-4189) The urlparse method does not sanitize input and allows characters like '\r' and '\n' in the URL path. This flaw allows an attacker to input a crafted URL, leading to injection attacks. (CVE-2022-0391)