If the algebra filter was enabled but not functional (eg the necessary binaries were missing from the server), it presented an XSS risk.Referenceshttps://bugzilla.redhat.com/show_bug.cgi?id=2179419https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3QZN34VSF4HTCW3C3ZP2OZYSLYUKADPF/https://moodle.org/mod/forum/discuss.php?d=445064
