HCE1-SA-2023-0044 Moderate HCE 1.1 Security Fix(es): In GNU Mailman before 2.1.36, a crafted URL to the Cgi/options.py user options page can execute arbitrary JavaScript for XSS. (CVE-2021-43331) GNU Mailman before 2.1.33 allows arbitrary content injection via the Cgi/private.py private archive login page. (CVE-2020-15011) /options/mailman in GNU Mailman before 2.1.31 allows Arbitrary Content Injection. (CVE-2020-12108) GNU Mailman 2.x before 2.1.30 uses the .obj extension for scrubbed application/octet-stream MIME parts. This behavior may contribute to XSS attacks against list-archive visitors, because an HTTP reply from an archive web server may lack a MIME type, and a web browser may perform MIME sniffing, conclude that the MIME type should have been text/html, and execute JavaScript code. (CVE-2020-12137) In GNU Mailman before 2.1.36, the CSRF token for the Cgi/admindb.py admindb page contains an encrypted version of the list admin password. This could potentially be cracked by a moderator via an offline brute-force attack. (CVE-2021-43332) HCE 1.1 mailman-2.1.15-30.hce1c.3.x86_64.rpm