CVE-2021-20281 | Moodle up to 3.5.16/3.8.7/3.9.4/3.10.1 Online Users Block information disclosure (Nessus ID 261366)
A vulnerability was found in Moodle up to 3.5.16/3.8.7/3.9.4/3.10.1. It has been classified as problematic. Affected by this vulnerability is an unknown functionality of the component Online Users Block. The manipulation leads to information disclosure.
This vulnerability is documented as CVE-2021-20281. The attack requires being on the local network. There is not any exploit available.
Upgrading the affected component is recommended.