{"id":"UBUNTU-CVE-2021-43331","details":"In GNU Mailman before 2.1.36, a crafted URL to the Cgi/options.py user options page can execute arbitrary JavaScript for XSS.","modified":"2026-02-04T02:16:05.977364Z","published":"2021-11-12T21:15:00Z","related":["USN-5151-1","USN-5151-2"],"upstream":["CVE-2021-43331"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-43331"},{"type":"REPORT","url":"https://mail.python.org/archives/list/mailman-announce@python.org/message/I2X7PSFXIEPLM3UMKZMGOEO3UFYETGRL/"},{"type":"REPORT","url":"https://bugs.launchpad.net/mailman/+bug/1949401"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5151-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5151-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-43331"}],"affected":[{"package":{"name":"mailman","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/mailman@1:2.1.20-1ubuntu0.6+esm2?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.1.20-1ubuntu0.6+esm2"}]}],"versions":["1:2.1.20-1","1:2.1.20-1ubuntu0.1","1:2.1.20-1ubuntu0.3","1:2.1.20-1ubuntu0.4","1:2.1.20-1ubuntu0.5","1:2.1.20-1ubuntu0.6","1:2.1.20-1ubuntu0.6+esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"mailman","binary_version":"1:2.1.20-1ubuntu0.6+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43331.json"}},{"package":{"name":"mailman","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/mailman@1:2.1.26-1ubuntu0.5?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.1.26-1ubuntu0.5"}]}],"versions":["1:2.1.23-1","1:2.1.24-1","1:2.1.25-1","1:2.1.26-1","1:2.1.26-1ubuntu0.1","1:2.1.26-1ubuntu0.2","1:2.1.26-1ubuntu0.3","1:2.1.26-1ubuntu0.4"],"ecosystem_specific":{"binaries":[{"binary_name":"mailman","binary_version":"1:2.1.26-1ubuntu0.5"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43331.json"}},{"package":{"name":"mailman","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/mailman@1:2.1.29-1ubuntu3.1+esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.1.29-1ubuntu3.1+esm1"}]}],"versions":["1:2.1.29-1","1:2.1.29-1build1","1:2.1.29-1ubuntu3","1:2.1.29-1ubuntu3.1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"mailman","binary_version":"1:2.1.29-1ubuntu3.1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43331.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}