[HIGH] SS-2017-004: XSS in page history comparison

PKSA-qt6n-rv4n-mdrh GHSA-cwgq-83w5-8jfq

Affected package: silverstripe/framework

Affected version: >=3.4.0,<3.4.6|>=3.5.0,<3.5.4

Reported by:
GitHub, FriendsOfPHP/security-advisories