[MEDIUM] SS-2016-015: XSS In OptionsetField and CheckboxSetField

PKSA-379h-891s-2kgm GHSA-hq4p-5mpr-jj9m

Affected package: silverstripe/framework

Affected version: >=3.1.19,<3.1.20|>=3.2.4,<3.2.5|>=3.3.2,<3.3.3|>=3.4.0,<3.4.1

Reported by:
GitHub, FriendsOfPHP/security-advisories