[MEDIUM] SS-2015-007: XSS In FormAction

PKSA-r8bz-4tyw-cqq7 GHSA-88jp-9jrv-6368

Affected package: silverstripe/framework

Affected version: >=3.1.0,<=3.1.9

Reported by:
GitHub, FriendsOfPHP/security-advisories