XML External Entities (XXE) in Quokka v0.4.0 allows remote attackers to execute arbitrary code via the component ‘quokka/utils/atom.py’.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-18703
Reference (s):
- https://github.com/rochacbruno/quokka/issues/676