Insufficient capability checks made it possible to fetch other users' calendar action events.
| Severity/Risk: | Minor |
| Versions affected: | 3.11 to 3.11.3, 3.10 to 3.10.7, 3.9 to 3.9.10 and earlier unsupported versions |
| Versions fixed: | 3.11.4, 3.10.8 and 3.9.11 |
| Reported by: | 0xkasper |
| CVE identifier: | CVE-2021-43560 |
| Changes (master): | http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-71918 |
| Tracker issue: | MDL-71918 IDOR in a calendar web service allows fetching of other users' action events |
Read more https://moodle.org/mod/forum/discuss.php?d=429100&parent=1726807