GHSA-j2r6-r929-v6gf XWiki Platform CSRF in the job scheduler

• Maven org.xwiki.platform:xwiki-platform-scheduler-ui: >= 3.1, < 14.10.19 → fixed in 14.10.19 • Maven org.xwiki.platform:xwiki-platform-scheduler-ui: >= 15.0-rc-1, < 15.5.4 → fixed in 15.5.4 • Maven org.xwiki.platform:xwiki-platform-scheduler-ui: >= 15.6-rc-1, < 15.9 → fixed in 15.9

Impact It is possible to schedule/trigger/unschedule existing jobs by having an admin visit the Job Scheduler page through a predictable URL, for example by embedding such an URL in any content as an image. To reproduce in an XWiki installation, open `:/xwiki/bin/view/Scheduler/?do=trigger&which=Scheduler.NotificationEmailDailySender` as a user with admin rights. If there is no error message that indicates the CSRF token is invalid, the installation is vulnerable. Patches The vulnerability has been fixed on XWiki 14.10.19, 15.5.5, and 15.9. Workarounds Modify the Scheduler.WebHome page following this patch. References • https://jira.xwiki.org/browse/XWIKI-20851 • https://github.com/xwiki/xwiki-platform/commit/f16ca4ef1513f84ce2e685d4a05d689bd3a2ab4c