Permissions were not correctly checked before loading event information into the calendar's edit event modal popup, so logged in non-guest users could view unauthorised calendar events. (Note: It was read-only access, users could not edit the events.)
| Severity/Risk: | Serious |
| Versions affected: | 3.6 to 3.6.2, 3.5 to 3.5.4 and 3.4 to 3.4.7 |
| Versions fixed: | 3.6.3, 3.5.5 and 3.4.8 |
| Reported by: | Juan Leyva |
| CVE identifier: | CVE-2019-3848 |
| Changes (master): | http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-64830 |
| Tracker issue: | MDL-64830 Logged in users could view all calendar events |