Messaging did not impose a character limit when sending messages, which could result in client-side (browser) denial of service for users receiving very large messages.
| Severity/Risk: | Minor |
| Versions affected: | 3.10, 3.9 to 3.9.3, 3.8 to 3.8.6, 3.5 to 3.5.15 and earlier unsupported versions |
| Versions fixed: | 3.10.1, 3.9.4, 3.8.7 and 3.5.16 |
| Reported by: | Rik Gouw |
| CVE identifier: | CVE-2021-20185 |
| Changes (master): | http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-67782 |
| Tracker issue: | MDL-67782 Client side denial of service via personal message |