A web service fetching messages was not restricted to the current user's conversations.
| Severity/Risk: | Serious |
| Versions affected: | 3.6 to 3.6.3 |
| Versions fixed: | 3.7, 3.6.4 |
| Reported by: | Mazen Gamal |
| Workaround: | Disable the messaging system until the fix is applied. |
| CVE identifier: | CVE-2019-10154 |
| Changes (master): | http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-65365 |
| Tracker issue: | MDL-65365 All messaging conversations could be viewed |
(Edited 11 June 2019 to update the CVE identifier.)