There was a link to site home within the the Boost theme's secure layout, meaning students could navigate out of the page.
| Severity/Risk: | Minor |
| Versions affected: | 3.6 to 3.6.2 and 3.5 to 3.5.4 |
| Versions fixed: | 3.6.3 and 3.5.5 |
| Reported by: | Martin von Löwis and Luca Bösch |
| CVE identifier: | CVE-2019-3851 |
| Changes (master): | http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-64706 |
| Tracker issue: | MDL-64706 Secure layout contained an insecure link in Boost theme |