[MEDIUM] Cross-site scripting (XSS) from image block content in the site frontend

PKSA-gyst-m8h9-qt4q CVE-2021-41258 GHSA-cq58-r77c-5jjw

Affected package: getkirby/cms

Affected version: >=3.5.0,<3.5.8

Reported by:
GitHub