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.
bugzilla.redhat.com/show_bug.cgi?id=1524596
github.com/advisories/GHSA-98gj-wwxm-cj3h
github.com/lepture/mistune/blob/master/CHANGES.rst
github.com/lepture/mistune/commit/5f06d724bc05580e7f203db2d4a4905fc1127f98
lists.fedoraproject.org/archives/list/[email protected]/message/NUR3GMHQBMA3UC4PFMCK6GCLOQC4LQQC/