Roundcube Webmail before 1.4.4 allows attackers to include local files and execute code via directory traversal in a plugin name to rcube_plugin_api.php.
https://security.gentoo.org/glsa/202007-41
https://roundcube.net/news/2020/04/29/security-updates-1.4.4-1.3.11-and-1.2.10
https://github.com/roundcube/roundcubemail/releases/tag/1.4.4
https://github.com/roundcube/roundcubemail/compare/1.4.3...1.4.4
https://github.com/roundcube/roundcubemail/commit/814eadb699e8576ce3a78f21e95bf69a7c7b3794
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.html