Winston 1.5.4 devices have a local www-data user that is overly permissioned, resulting in root privilege escalation.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16262
Reference (s):
- https://labs.bishopfox.com/advisories/winston-privacy-version-1.5.4
- https://winstonprivacy.com/