MSA-21-0008: User full name disclosure within online users block

MSA-21-0008: User full name disclosure within online users block

by Michael Hawkins -
Number of replies: 0

It was possible for some users without permission to view other users' full names to do so via the online users block.


Severity/Risk: Minor
Versions affected: 3.10 to 3.10.1, 3.9 to 3.9.4, 3.8 to 3.8.7, 3.5 to 3.5.16 and earlier unsupported versions
Versions fixed: 3.10.2, 3.9.5, 3.8.8 and 3.5.17
Reported by: Ankit Agarwal
Workaround: Hide the online users block (via Site administration > Plugins > Blocks > Manage blocks) until the patch has been applied.
CVE identifier: CVE-2021-20281
Changes (master): http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-59293
Tracker issue: MDL-59293 User full name disclosure within online users block