FreeBSD: VID-8d65aa3b-31ce-11ec-8c32-a14e8e520dc7 (CVE-2021-42097): mailman -- brute-force vuln on list admin password, and CSRF vuln in releases before 2.1.35

GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A csrf_token value is not specific to a single user account. An attacker can obtain a value within the context of an unprivileged user account, and then use that value in a CSRF attack against an admin (e.g., for account takeover).