Cross-site scripting (XSS) vulnerability in the _keyify function in mistune.py in Mistune before 0.8.1 allows remote attackers to inject arbitrary web script or HTML by leveraging failure to escape the "key" argument.Referenceshttps://github.com/lepture/mistune/blob/master/CHANGES.rsthttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NUR3GMHQBMA3UC4PFMCK6GCLOQC4LQQC/https://github.com/lepture/mistune/commit/5f06d724bc05580e7f203db2d4a4905fc1127f98https://bugzilla.redhat.com/show_bug.cgi?id=1524596
